{"id":6898217877574,"title":"Herbsmith Rx Di Tan San Herbal Formula for Cats, Dogs and Horses","handle":"herbsmith-rx-di-tan-san-for-cats-dogs-and-horses","description":"\u003cdiv style=\"text-align: right;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0021\/2110\/5457\/files\/veterinary_authorizaton_required_for_tcvm_herbal_formulas_240x240.jpg?v=1787081808\" alt=\"Veterinary Authorization Required for TCVM Herbal Formulas - TCVM Pet Supply\" style=\"margin: 5px 5px 5px 5px; float: right;\"\u003e\u003c\/div\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eHerbsmith Rx Di Tan San is a classical Chinese herbal formula recommended by holistic veterinarians to clear phlegm, open the orifices, and tonify qi in dogs, cats, and horses. Also known as Scour Phlegm Powder, this nine-herb formula addresses the TCVM pattern of phlegm obstructing and misting the heart orifices, the mechanism responsible for the neurological and cognitive presentations that arise when accumulated phlegm obstructs the clear orifices of the heart and brain: seizures, sudden collapse or loss of consciousness, altered mentation, ataxia, vertigo, behavioral changes, and cognitive clouding from phlegm blocking the clear yang from ascending to the head and the heart spirit from expressing clearly. Di Tan San is built on the Er Chen San foundation (Ban Xia, Ju Hong, Fu Ling) and extends it with four additional herbs that dramatically amplify the phlegm-dissolving and orifice-opening strategy: Dan Nan Xing (bile-processed arisaema, the signature phlegm-wind dissolving and orifice-opening herb), Shi Chang Pu (the classical aromatic orifice-opener that directly opens the heart orifices blocked by phlegm), Zhu Ru (bamboo shavings that cool phlegm-heat and harmonize the stomach to stop phlegm generation from the middle jiao), and Zhi Shi (immature bitter orange that strongly descends qi and breaks up phlegm accumulations in the channels and orifices). Ren Shen tonifies the yuan qi to support the formula's intensive phlegm-scouring action, and Gan Cao harmonizes the formula's herbs. Di Tan San treats phlegm obstruction of the orifices at a level of severity and neurological depth that the base Er Chen San formula cannot reach, making it the appropriate choice when phlegm accumulation has progressed to the point of obstructing consciousness, generating wind-phlegm movement disorders, or producing the sudden and episodic neurological presentations characteristic of phlegm misting the heart and generating liver wind. Well suited for dogs, cats, and horses presenting with phlegm obstructing the heart orifices and generating internal wind, characterized by episodic or sudden altered consciousness, seizure activity, or collapse from phlegm-wind obstruction; ataxia, incoordination, or abnormal gait from phlegm obstructing the clear yang's ascent and generating wind in the channels; cognitive clouding, altered behavior, or unresponsiveness from phlegm misting the heart spirit; vertigo and head-shaking from phlegm-wind obstructing the channels of the head; a pale or dusky tongue with a white or yellow greasy coating reflecting the phlegm accumulation; and a slippery or wiry-slippery pulse reflecting the phlegm and phlegm-wind. Available as a concentrated powder mixed into food; cats and dogs use the Canine Blend, while horses use the Equine\/Horse Blend. Dosing varies by species and body weight, and your authorizing veterinarian will provide specific guidance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVETERINARY AUTHORIZATION REQUIRED: \u003ca href=\"https:\/\/tcvmpet.com\/pages\/get-an-authorization\" rel=\"noopener\" style=\"color: rgb(0, 0, 0);\" target=\"_blank\"\u003eSubmit Your Authorization Request\u003c\/a\u003e or \u003ca href=\"https:\/\/tcvmpet.com\/pages\/schedule-a-consultation\" rel=\"noopener\" style=\"color: rgb(0, 0, 0);\" target=\"_blank\"\u003eRequest a TCVM Telemedicine Consultation\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eWhat It Supports\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003ePhlegm scouring and orifice opening through Dan Nan Xing as the signature phlegm-wind dissolving and orifice-opening herb extending the formula's phlegm-transforming action to the neurological level:\u003c\/strong\u003e Scours out entrenched phlegm and opens the heart orifices through Dan Nan Xing (bile-processed arisaema powder, Pulvis Arisaemae cum Felle Bovis), the formula's most potent phlegm-dissolving and orifice-opening herb and the key ingredient that distinguishes Di Tan San from the base Er Chen San strategy. Dan Nan Xing is Tian Nan Xing (Arisaema rhizome, jack-in-the-pulpit) processed with bovine bile (niu dan, ox bile), a processing method that adds the bile's cold, bitter, phlegm-heat-clearing, and liver-wind-calming action to Nan Xing's inherently powerful phlegm-dissolving and wind-phlegm-dispersing properties. Bile processing converts Nan Xing's warm, drying, strongly irritant nature into a cold-natured, bitter, phlegm-heat-clearing, liver-wind-calming action that specifically targets the phlegm-wind and phlegm-heat patterns responsible for the neurological presentations Di Tan San treats. Dan Nan Xing reaches phlegm lodged at deeper channel levels than Ban Xia can access, dissolving phlegm accumulated in the orifices, channels, and collaterals of the head and brain, and its liver-wind-calming action addresses the wind component of the phlegm-wind pattern responsible for seizure and movement-disorder presentations. Raw Nan Xing is toxic; only the bile-processed form (Dan Nan Xing) is used clinically. Dan Nan Xing's strong bioactive alkaloid content warrants veterinary oversight and may interact with anesthetic and neuromuscular medications; veterinary review is required.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eAromatic orifice opening and heart spirit clearing through Shi Chang Pu directly unblocking the heart orifices from phlegm obstruction and restoring clear communication between the heart spirit and the sensory and cognitive orifices:\u003c\/strong\u003e Opens the heart orifices, transforms turbid phlegm, and promotes the ascent of clear yang to the orifices of the head through Shi Chang Pu (sweetflag rhizome, Rhizoma Acori Graminei), the classical aromatic orifice-opening herb that acts directly on the phlegm obstruction blocking the heart and sensory orifices. Shi Chang Pu's acrid, aromatic, and warm nature penetrates the phlegm obstruction in the orifices and channels of the heart and head, dispersing the phlegm-damp and turbid yin that is blocking the heart spirit, disrupting clear consciousness, and obstructing the ascending clear yang that maintains alertness and sensory clarity. In TCVM, the heart houses the shen (spirit\/consciousness), and when phlegm accumulates and obstructs the heart's orifices, the shen cannot express clearly, generating the altered mentation, cognitive clouding, behavioral change, and loss of consciousness that characterize the phlegm-misting-the-orifices pattern. Shi Chang Pu's specific action of opening the heart orifices and dispersing the turbid phlegm that blocks the shen makes it the essential orifice-opening herb in Di Tan San; it is the herb that directly addresses the consciousness-obstructing dimension of the phlegm pattern that Dan Nan Xing's phlegm-dissolving action exposes by breaking up the phlegm accumulation. Shi Chang Pu has mild interaction potential with sedative medications and anesthetic agents through its aromatic volatile oil content; veterinary monitoring is warranted in animals on these medications.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eQi descending and phlegm breaking through Zhi Shi strongly moving the qi downward to break up phlegm accumulations and drive phlegm out of the orifices and channels where it has lodged:\u003c\/strong\u003e Strongly descends the qi, breaks up phlegm accumulations, and resolves food stagnation through Zhi Shi (immature bitter orange fruit, Fructus Immaturus Citri Aurantii), the forceful qi-descending herb that addresses the qi stagnation component of the phlegm obstruction pattern. In TCVM phlegm pathology, phlegm accumulates and becomes entrenched in the orifices and channels when qi stagnates and loses its ability to move phlegm out of the channels and downward through the body's normal phlegm-resolving pathways. Zhi Shi's strong downward qi-moving and phlegm-breaking action reverses this stagnation by forcefully descending the qi in the chest, middle jiao, and channels, breaking up consolidated phlegm masses that have accumulated and hardened in the orifices, and opening the qi movement pathways that allow Dan Nan Xing and Shi Chang Pu's orifice-opening action to take effect. Zhi Shi also breaks up food stagnation in the middle jiao, addressing any digestive phlegm-generating component of the pattern. Zhi Shi has interaction potential with CYP3A4-metabolized medications through its furanocoumarin content (bergapten and related compounds); veterinary review is warranted in animals on narrow-therapeutic-index CYP3A4 medications including cyclosporine and tacrolimus.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003ePhlegm-heat cooling and stomach harmonizing through Zhu Ru clearing phlegm-heat from the stomach and lung channels and stopping phlegm production at the middle jiao source:\u003c\/strong\u003e Clears phlegm-heat, cools the stomach, and stops vomiting and nausea from phlegm-heat obstructing the middle jiao through Zhu Ru (bamboo shavings, Caulis Bambusae in Taeniis), the phlegm-heat-clearing and stomach-harmonizing herb that addresses the heat component of the phlegm pattern and prevents new phlegm generation from middle jiao heat. When phlegm accumulation generates heat (phlegm stagnating in the channels generates secondary heat from the obstruction), the phlegm-heat combination becomes more tenacious and difficult to dissolve than cold phlegm alone, and the middle jiao heat accelerates phlegm production from the stomach and lung channels. Zhu Ru's cold, sweet nature clears this phlegm-heat from the stomach and lung, cools the middle jiao to stop new phlegm generation from heat, and harmonizes the stomach qi to prevent the rebellious stomach qi that phlegm-heat obstruction generates. Zhu Ru's cooling action also complements Dan Nan Xing's bile-processed cold nature in addressing the heat dimension of phlegm-wind, preventing the formula's warming phlegm-drying herbs (Ban Xia, Ju Hong) from excessively warming the pattern and worsening any heat component. Zhu Ru is generally well tolerated with minimal drug interactions.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eEr Chen San base phlegm transformation and dampness drying through Ban Xia, Ju Hong, and Fu Ling providing the foundational phlegm-transforming and spleen-supporting action on which Di Tan San's stronger orifice-opening strategy is built:\u003c\/strong\u003e Transforms phlegm, dries dampness, regulates the qi, and strengthens the spleen through the Er Chen San core of Ban Xia, Ju Hong, and Fu Ling, the foundational phlegm-transforming strategy that underlies Di Tan San's more intensive orifice-opening approach. Ban Xia (processed pinellia rhizome) dries dampness and transforms phlegm at the spleen and stomach level, addressing the phlegm-damp substrate from which the more severe phlegm-wind and phlegm-orifice-obstructing patterns develop. Ju Hong (red tangerine peel) regulates the qi and assists phlegm transformation through its acrid aromatic qi-moving action, preventing phlegm re-accumulation from qi stagnation and assisting the stronger qi-moving action of Zhi Shi. Fu Ling strengthens the spleen and drains dampness, addressing the spleen qi vacuity root cause of the dampness accumulation that generates and sustains the phlegm pattern. The Er Chen San base ensures that Di Tan San's intensive orifice-opening strategy is supported by the fundamental phlegm-transforming and spleen-strengthening action needed to clear the phlegm substrate that the orifice-opening herbs expose and dissolve.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eQi tonification and formula harmonization through Ren Shen and Gan Cao supporting the yuan qi during the formula's intensive phlegm-scouring action and coordinating the formula's nine herbs into a therapeutically coherent whole:\u003c\/strong\u003e Tonifies the yuan qi and harmonizes the formula through Ren Shen (ginseng root) and Gan Cao (raw licorice root), the tonifying and harmonizing pair that prevents the formula's intensive phlegm-scouring and orifice-opening action from depleting the righteous qi and ensures the formula's nine herbs work as a coordinated therapeutic whole. Di Tan San's phlegm-scouring strategy requires substantial qi to drive the phlegm out of the deep orifices and channels where it has lodged; Ren Shen's yuan qi tonification provides this foundation, preventing the phlegm-dissolving herbs from depleting the qi as they work. The formula uses raw Gan Cao (not honey-fried Zhi Gan Cao), providing harmonizing and modest spleen qi support with a slightly more clearing and moderating action than the warming, tonifying Zhi Gan Cao would provide.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eTCVM Principles\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003ePrimary action, phlegm misting the heart orifices and generating wind-phlegm through the Er Chen San base extended by Dan Nan Xing, Shi Chang Pu, Zhi Shi, and Zhu Ru into a formula capable of reaching the neurological and consciousness-obstructing presentations that the base phlegm-transforming strategy cannot address:\u003c\/strong\u003e Addresses the phlegm-misting-the-orifices pattern and the wind-phlegm pattern responsible for the neurological and cognitive presentations that arise when phlegm accumulation reaches the orifices of the heart and the channels of the head and brain. In TCVM pathophysiology, phlegm is first generated by spleen qi vacuity, allowing fluid to accumulate and congeal (the Er Chen San pattern); when this phlegm accumulation persists and deepens, it can move upward along the liver and gallbladder channels to obstruct the orifices of the head and heart, generating the phlegm-misting-the-orifices pattern that manifests as altered consciousness and cognitive signs. When accumulated phlegm combines with liver wind (arising from liver yin vacuity, liver fire, or phlegm obstruction generating internal wind), the phlegm-wind combination generates seizure, movement disorder, and sudden neurological onset presentations characteristic of wind-phlegm. Di Tan San addresses both the phlegm substrate (through the Er Chen San base) and the neurological depth of the phlegm obstruction (through Dan Nan Xing's phlegm-wind dissolving, Shi Chang Pu's orifice-opening, Zhi Shi's phlegm-breaking qi descension, and Zhu Ru's phlegm-heat clearing), making it the appropriate formula when the phlegm pattern has progressed to generating neurological or consciousness-obstructing manifestations.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eClassical antecedent, Di Tan San as a derived formula from the Er Chen San phlegm-treatment tradition:\u003c\/strong\u003e Di Tan San's relationship to Er Chen San reflects the same formula-building strategy as Wen Dan Tang (adding phlegm-heat herbs to the Er Chen base for phlegm-heat disturbing the spirit) and Qing Qi Hua Tan Wan (adding lung heat-clearing herbs for phlegm-heat in the lung). The Er Chen San core is preserved and extended with additional herbs that direct the base phlegm-transforming strategy to the specific pathogenic factor or tissue location requiring treatment. Di Tan San's additions (Dan Nan Xing, Shi Chang Pu, Zhi Shi, Zhu Ru) are specifically selected for their orifice-opening, phlegm-wind dissolving, and neurological-level phlegm-clearing actions, reflecting the classical TCVM formulation principle that the severity and location of the phlegm pattern determines which herbs are added to the Er Chen San base. The pattern hierarchy for phlegm formula selection from the Er Chen San tradition is: Er Chen San for basic phlegm-damp; Wen Dan Tang for phlegm-heat disturbing the gallbladder and heart spirit; Di Tan Tang and Di Tan San for phlegm misting the orifices and wind-phlegm; and Da Di Tan Tang (with stronger wind-dissolving and orifice-opening herbs) for the most severe wind-phlegm stroke presentations.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003ePattern cautions:\u003c\/strong\u003e Not appropriate for pure cold-phlegm patterns without orifice obstruction or for yin vacuity phlegm, where drying herbs may worsen yin depletion. Veterinary pattern assessment and medication review are required.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eUrgent signs:\u003c\/strong\u003e Seizures, collapse, loss of consciousness, or sudden neurological changes require prompt veterinary assessment. Do not delay urgent care while waiting for an herbal formula to take effect.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eAvailable Forms\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003ePowder - Canine Blend (for dogs and cats):\u003c\/strong\u003e Available in 75 g, 150 g, 500 g, 900 g, and 1200 g sizes; mix into food at the recommended dose for your pet's weight. Cats and dogs both use this blend.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003ePowder - Equine\/Horse Blend (for horses only):\u003c\/strong\u003e Available in 150 g, 500 g, 900 g, and 1200 g sizes; mix into grain at the recommended dose for your horse.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSuggested Use\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eCanine Blend Powder - Dogs under 30 lbs:\u003c\/strong\u003e ½ tsp twice daily, or as directed by your veterinarian.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eCanine Blend Powder - Dogs 30-80 lbs:\u003c\/strong\u003e 1 tsp twice daily, or as directed by your veterinarian.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eCanine Blend Powder - Dogs 80-120 lbs:\u003c\/strong\u003e 1½ tsp twice daily, or as directed by your veterinarian.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eCanine Blend Powder - Dogs over 120 lbs:\u003c\/strong\u003e 2 tsp twice daily, or as directed by your veterinarian.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eCanine Blend Powder - Cats:\u003c\/strong\u003e ¼ tsp twice daily, or as directed by your veterinarian.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eEquine\/Horse Blend - 1,000 lb horse, initial dose:\u003c\/strong\u003e Two tablespoons twice daily, or as directed by your veterinarian. Continue the initial schedule for 20 days, or as directed by your veterinarian.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eEquine\/Horse Blend - 1,000 lb horse, maintenance dose:\u003c\/strong\u003e After the initial period, give two tablespoons once daily in grain, or as directed by your veterinarian.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eIf the horse initially refuses, start with a small amount mixed into grain and gradually increase until accustomed to the taste, or as directed by your veterinarian. Most horses will readily accept the herbs in their grain. Confirm the dog dose at the overlapping 80 lb boundary with your authorizing veterinarian. Veterinary authorization and medication review are required before use. This formula is not appropriate for pure cold-phlegm patterns without orifice obstruction or for yin vacuity phlegm. Seizures, collapse, loss of consciousness, or sudden neurological changes require prompt veterinary assessment; do not delay urgent care.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eIngredients\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eActive Ingredients:\u003c\/strong\u003e Ban Xia (Rhizoma Pinelliae Ternatae), Ju Hong (Pericarpium Citri Erythrocarpae), Fu Ling (Sclerotium Poriae Cocos), Zhi Shi (Fructus Immaturus Citri Aurantii), Zhu Ru (Caulis Bambusae in Taeniis), Dan Nan Xing (Pulvis Arisaemae cum Felle Bovis), Shi Chang Pu (Rhizoma Acori Graminei), Ren Shen (Radix Ginseng), Gan Cao (Radix Glycyrrhizae Uralensis)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eInactive Ingredient:\u003c\/strong\u003e Flaxseed\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVETERINARY AUTHORIZATION REQUIRED: \u003ca href=\"https:\/\/tcvmpet.com\/pages\/get-an-authorization\" rel=\"noopener\" style=\"color: rgb(0, 0, 0);\" target=\"_blank\"\u003eSubmit Your Authorization Request\u003c\/a\u003e or \u003ca href=\"https:\/\/tcvmpet.com\/pages\/schedule-a-consultation\" rel=\"noopener\" style=\"color: rgb(0, 0, 0);\" target=\"_blank\"\u003eRequest a TCVM Telemedicine Consultation\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eActive Ingredient TCVM Actions\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eDi Tan San is a nine-herb formula built on the Er Chen San phlegm-transforming base (Ban Xia, Ju Hong, Fu Ling) and extended with four orifice-opening and phlegm-wind-dissolving herbs (Dan Nan Xing, Shi Chang Pu, Zhi Shi, Zhu Ru) plus a qi-tonifying and harmonizing pair (Ren Shen, Gan Cao) to address phlegm misting the heart orifices and phlegm-wind at the neurological level:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eDan Nan Xing (Pulvis Arisaemae cum Felle Bovis) - Bile-processed Arisaema \/ Jack-in-the-Pulpit with Bovine Bile:\u003c\/strong\u003e Dissolves phlegm-wind and phlegm-heat, opens the orifices, calms liver wind, and clears heat from the lung and heart channels; the signature phlegm-wind dissolving herb that defines Di Tan San's neurological indication and is the most potent phlegm-wind and orifice-obstructing phlegm-clearing herb in the classical materia medica. Dan Nan Xing is Tian Nan Xing (Arisaema rhizome) processed with bovine bile (ox bile), which transforms the raw herb's warm, toxic, strongly drying nature into a cold, bitter, phlegm-heat-clearing and liver-wind-calming action targeted specifically at phlegm-wind, phlegm misting the orifices, and phlegm-heat obstructing the heart and brain channels. Raw Tian Nan Xing is toxic and must not be substituted for the processed ingredient. Bile processing does not remove the need for veterinary supervision. Dan Nan Xing is indicated specifically for phlegm-wind patterns involving seizures, altered consciousness, and neurological presentations, and should not be used for cold phlegm patterns (where warm, drying Ban Xia-based formulas are appropriate) or yin vacuity phlegm. Dan Nan Xing has strong bioactive alkaloid content and requires veterinary oversight; interactions with anesthetic agents, neuromuscular blocking agents, and antiepileptic medications warrant a comprehensive veterinary medication review.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eShi Chang Pu (Rhizoma Acori Graminei) - Sweetflag Rhizome \/ Stone Calamus \/ Acorus Rhizome:\u003c\/strong\u003e Opens the heart orifices, transforms turbid phlegm-damp, promotes the ascent of clear yang to the orifices, and calms the spirit obstructed by phlegm; the classical aromatic orifice-opening herb that directly addresses the consciousness-obstructing dimension of the phlegm-misting-the-orifices pattern. Shi Chang Pu's acrid, aromatic, warm, and penetrating nature disperses the turbid phlegm-damp obstructing the heart's orifices, allowing the heart spirit to express clearly, restoring the clear yang's ascent to the sensory and cognitive orifices of the head, and opening the channel pathways that phlegm obstruction has blocked. Shi Chang Pu is found in virtually every classical formula for phlegm misting the orifices and is considered the essential orifice-opening herb of the TCVM materia medica for this pattern. Shi Chang Pu contains beta-asarone and related aromatic volatile oils that contribute to its orifice-opening action; beta-asarone has mild CNS-modulating effects and interaction potential with sedative, anesthetic, and antiepileptic medications. Veterinary monitoring is warranted in animals on these medications.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eZhi Shi (Fructus Immaturus Citri Aurantii) - Immature Bitter Orange Fruit \/ Unripe Bitter Orange:\u003c\/strong\u003e Strongly descends the qi, breaks up phlegm and food accumulations, and opens obstructions in the chest and abdomen; the forceful qi-descending herb that reverses the qi stagnation allowing phlegm to accumulate and lodge in the channels and orifices, driving phlegm downward and out of the locations where it has consolidated. Zhi Shi's bitter, acrid, and cool nature makes it significantly more forceful than Chen Pi or Ju Hong in moving the qi and breaking phlegm accumulations; its action in Di Tan San is to create the downward qi movement that carries Dan Nan Xing and Shi Chang Pu's phlegm-dissolving action through the channels and orifices and drives the dissolved phlegm out through the body's normal elimination pathways. Zhi Shi contains furanocoumarin compounds (bergapten and related) with CYP3A4 inhibitory potential; veterinary review is warranted in animals on cyclosporine, tacrolimus, statins, and other narrow-therapeutic-index CYP3A4-metabolized medications.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eZhu Ru (Caulis Bambusae in Taeniis) - Bamboo Shavings \/ Bamboo Culm Shavings:\u003c\/strong\u003e Clears phlegm-heat from the lung and stomach channels, cools the stomach, stops vomiting and nausea from phlegm-heat, and clears heat from the heart and chest; the phlegm-heat-clearing and stomach-harmonizing herb that addresses the heat dimension of the phlegm pattern and prevents middle jiao heat from continuously generating new phlegm while the orifice-opening herbs work. Zhu Ru's sweet, cold, phlegm-heat-clearing action specifically targets lung and stomach channel phlegm-heat, working alongside Dan Nan Xing's bile-processed, cold, phlegm-heat-clearing action to address the thermal component of the phlegm-wind pattern at the middle jiao and lung levels. Zhu Ru also prevents the rebellious stomach qi generated by phlegm-heat obstruction, addressing nausea and vomiting that may accompany severe phlegm-orifice obstruction. Zhu Ru is generally well tolerated with minimal drug interactions.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eBan Xia (Rhizoma Pinelliae Ternatae) - Pinellia Rhizome \/ Half Summer:\u003c\/strong\u003e Dries dampness, transforms phlegm, descends rebellious stomach qi, and dissipates phlegm nodules; the principal phlegm-transforming herb of the Er Chen San base, providing the foundational dampness-drying and phlegm-transforming action on which Di Tan San's orifice-opening strategy is built. In Di Tan San, Ban Xia addresses the phlegm-damp substrate at the spleen and stomach level, clearing the source of phlegm accumulation that Dan Nan Xing and Shi Chang Pu clear from the orifices. Processed Ban Xia is always used clinically; raw Ban Xia is toxic. Ban Xia has anticholinergic interaction potential, and its warm, drying nature is contraindicated for yin vacuity phlegm and heat bi patterns; veterinary oversight is required.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eJu Hong (Pericarpium Citri Erythrocarpae) - Red Tangerine Peel \/ Erythrocarpa Citrus Peel:\u003c\/strong\u003e Regulates the qi, dries dampness, and transforms phlegm through its acrid aromatic qi-moving action; the qi-regulating herb of the Er Chen San base that prevents phlegm re-accumulation from qi stagnation and assists Zhi Shi's stronger qi-descending action in maintaining the downward qi movement that carries phlegm out of the channels and orifices. Ju Hong is generally well tolerated; mild CYP3A4 interaction potential from its flavonoid content at high doses.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eFu Ling (Sclerotium Poriae Cocos) - Poria \/ Tuckahoe:\u003c\/strong\u003e Strengthens the spleen, promotes water metabolism, drains dampness, and calms the spirit; the spleen-strengthening and dampness-draining herb of the Er Chen San base that addresses the spleen qi vacuity root cause of the dampness accumulation generating and sustaining the phlegm. Fu Ling's spirit-calming action is particularly relevant in Di Tan San, where phlegm obstruction of the heart orifices disturbs the heart spirit; Fu Ling's heart-nourishing and spirit-calming action gently supports the heart spirit, while Dan Nan Xing and Shi Chang Pu clear the phlegm obstruction blocking it. Fu Ling is generally well tolerated; its water-promoting action warrants monitoring in animals on diuretic medications.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eRen Shen (Radix Ginseng) - Asian Ginseng Root:\u003c\/strong\u003e Strongly tonifies the yuan qi and spleen qi and generates fluids; the principal qi tonic that provides the constitutional qi support needed for the formula's intensive phlegm-scouring action and prevents the phlegm-dissolving and orifice-opening herbs from depleting the righteous qi as they work through the deep channels and orifices. Ren Shen's yuan qi tonification is especially important in Di Tan San because phlegm misting the orifices is typically a more severe and constitutionally depleting pattern than simple phlegm-damp, and the animal's righteous qi may already be significantly insufficient when the phlegm has progressed to the neurological level. Ren Shen has interaction potential with anticoagulant, stimulant, antidiabetic, and antihypertensive medications; veterinary review is required.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eGan Cao (Radix Glycyrrhizae Uralensis) - Raw Licorice Root:\u003c\/strong\u003e Harmonizes the formula's herbs, moderates the harsh or conflicting actions of the formula's diverse herbs, and provides modest spleen qi support; the harmonizing envoy that coordinates Di Tan San's nine herbs into a coherent therapeutic strategy. The formula uses raw Gan Cao (not honey-fried Zhi Gan Cao), which provides a slightly more clearing and moderating action than Zhi Gan Cao's warming, tonifying nature, appropriate in a formula that includes cold-natured phlegm-heat-clearing herbs (Dan Nan Xing, Zhu Ru, Zhi Shi). Gan Cao at sustained doses has pseudoaldosteronism-like interaction potential with corticosteroids, diuretics, and antihypertensive medications; veterinary review is warranted in animals on these medications.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003ePotential Drug Interactions\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eDi Tan San contains phlegm-transforming and aromatic orifice-opening ingredients, including Dan Nan Xing and Shi Chang Pu, together with qi-regulating citrus ingredients, qi-tonifying Ren Shen, and licorice root (Gan Cao). Ingredients with potential effects on the nervous system, medication metabolism, glucose regulation, blood clotting, and fluid balance warrant review when used alongside prescriptions. Pets taking prescription medications should use this formula under veterinary supervision because herb-drug interaction research in dogs and cats is limited. Horses taking prescription medications also require veterinary review. The formula is not appropriate for pure cold-phlegm patterns without orifice obstruction or for yin vacuity phlegm, where drying herbs may worsen yin depletion.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eMedication categories warranting extra caution include antiepileptic medications, anesthetics, sedatives, neuromuscular blocking agents, medications processed by the liver including cyclosporine and tacrolimus, anticoagulant or antiplatelet medications, antidiabetic medications, stimulants, antihypertensive medications, corticosteroids, diuretics, and multiple concurrent prescription medications. Do not change prescribed seizure medication without veterinary guidance. Your authorizing veterinarian can determine appropriateness based on your animal's condition, current medications, and laboratory results, together with confirmation of the phlegm-misting-the-orifices or wind-phlegm pattern through tongue, pulse, and clinical assessment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVETERINARY AUTHORIZATION REQUIRED: \u003ca href=\"https:\/\/tcvmpet.com\/pages\/get-an-authorization\" rel=\"noopener\" style=\"color: rgb(0, 0, 0);\" target=\"_blank\"\u003eSubmit Your Authorization Request\u003c\/a\u003e or \u003ca href=\"https:\/\/tcvmpet.com\/pages\/schedule-a-consultation\" rel=\"noopener\" style=\"color: rgb(0, 0, 0);\" target=\"_blank\"\u003eRequest a TCVM Telemedicine Consultation\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eFrequently Asked Questions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3 style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eWhat conditions is Di Tan San used for in TCVM?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eIn Traditional Chinese Veterinary Medicine, Di Tan San is indicated for the phlegm-misting-the-orifices pattern and the wind-phlegm pattern, where phlegm accumulation has progressed beyond the lung and middle jiao level to obstruct the heart orifices and the channels of the head and brain, generating the neurological and cognitive presentations characteristic of phlegm at the consciousness and movement-control level. The phlegm-misting-the-orifices pattern generates altered consciousness, cognitive clouding, behavioral change, and episodic unresponsiveness as phlegm blocks the heart spirit's expression and the clear yang's ascent to the sensory and cognitive orifices of the head. The wind-phlegm pattern generates seizures, ataxia, tremors, and movement disorders when the accumulated phlegm combines with liver wind, with the phlegm providing the medium in which wind generates and the wind driving the phlegm's upward movement into the channels of the head and brain. This pattern also addresses vertigo and head-shaking from phlegm-wind obstructing the head channels. The tongue for these patterns is typically pale or dusky with a white or yellow greasy coating (reflecting phlegm and, when heat is present, phlegm-heat), and the pulse is slippery or wiry-slippery (reflecting the phlegm-wind combination). Your authorizing veterinarian will differentiate the phlegm-misting-the-orifices pattern from other causes of altered consciousness and seizure in animals, confirm the TCVM mechanism, and determine whether Di Tan San alone or in combination with additional wind-calming herbs is appropriate for your animal's specific presentation. Seizures, collapse, loss of consciousness, or sudden neurological changes require prompt veterinary assessment; do not delay urgent care.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eHow is Di Tan San administered to dogs, cats, and horses?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eMix the powder into food or grain. Dogs and cats use the Canine Blend. For dogs under 30 lbs, give ½ tsp twice daily, or as directed by your veterinarian. For dogs 30-80 lbs, give 1 tsp twice daily, or as directed by your veterinarian. For dogs 80-120 lbs, give 1½ tsp twice daily, or as directed by your veterinarian. For dogs over 120 lbs, give 2 tsp twice daily, or as directed by your veterinarian. For cats, give ¼ tsp twice daily, or as directed by your veterinarian. Confirm the dog dose at the overlapping 80 lb boundary with your authorizing veterinarian.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eHorses use the Equine\/Horse Blend. For a 1,000 lb horse, give two tablespoons twice daily, or as directed by your veterinarian. Continue the initial schedule for 20 days, or as directed by your veterinarian. Then give two tablespoons once daily in grain, or as directed by your veterinarian. If the horse initially refuses, start with a small amount mixed into grain and gradually increase until accustomed to the taste, or as directed by your veterinarian. Comprehensive veterinary medication review is required before use, particularly for animals taking antiepileptic, anesthetic, sedative, or neuromuscular medications. Do not change prescribed seizure medication without veterinary guidance. Your veterinarian will guide any transition to a maintenance spleen-strengthening and phlegm-preventing formula once the pattern has stabilized.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eHow long does it take to see results with Di Tan San?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eAs a formula targeting the phlegm-misting-the-orifices and wind-phlegm patterns, Di Tan San's response timeline depends on the severity and chronicity of the phlegm obstruction and the strength of the animal's righteous qi. In presentations with active phlegm-wind signs (recent-onset ataxia, altered mentation, episodic neurological events from phlegm-wind), early improvement may be seen within 2 to 4 weeks as the formula's orifice-opening and phlegm-dissolving action begins clearing the phlegm accumulation from the channels and orifices of the head. More complete resolution of the phlegm-misting pattern, including normalization of the tongue coating and pulse and sustained improvement in the neurological or cognitive signs, typically requires 4 to 12 weeks depending on the depth and duration of the phlegm accumulation. Chronic or deeply established phlegm-orifice obstruction with significant constitutional qi vacuity may require longer treatment and a sustained maintenance strategy to prevent recurrence. Your authorizing veterinarian will monitor the tongue, pulse, and clinical neurological signs throughout the treatment course and coordinate Di Tan San's use with any concurrent conventional veterinary management of the neurological presentation. Treatment duration and reassessment timing should follow your veterinarian's directions. Do not wait for an herbal response when seizures, collapse, loss of consciousness, or sudden neurological changes occur; seek prompt veterinary assessment.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eHow does Di Tan San differ from Er Chen San, and when does the veterinarian choose Di Tan San over Er Chen San?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eEr Chen San is the foundational phlegm-transforming formula for phlegm-damp accumulation in the lung, middle jiao, and channels at the respiratory, digestive, and general phlegm-damp level: productive cough, nausea and vomiting from phlegm, phlegm panting, and general phlegm-damp accumulation without neurological involvement. Di Tan San is the specialized derived formula appropriate when the phlegm pattern has progressed to obstruct the heart orifices and generate wind-phlegm at the neurological level: altered consciousness, cognitive clouding, seizures, ataxia, and movement disorders from phlegm-wind and phlegm-orifice obstruction. The clinical decision point is the presence of neurological or consciousness-obstructing signs: when phlegm generates altered mentation, episodic consciousness changes, seizure activity, or significant movement disorders, Di Tan San's Dan Nan Xing, Shi Chang Pu, Zhi Shi, and Zhu Ru provide the orifice-opening, phlegm-wind-dissolving, and neurological-level phlegm-clearing action that Er Chen San's simpler phlegm-transforming strategy cannot deliver. The veterinarian may use Er Chen San for milder phlegm-respiratory or phlegm-digestive presentations and transition to Di Tan San if the pattern deepens to include neurological signs, or use Di Tan San from the outset when the presenting signs already indicate phlegm at the orifice-obstructing and wind-phlegm level. Ongoing monitoring of tongue coating, pulse quality, and clinical signs guides formula selection and transition decisions throughout the treatment course.\u003c\/span\u003e\u003c\/p\u003e","published_at":"2022-05-18T16:38:09-05:00","created_at":"2022-04-28T14:31:15-05:00","vendor":"Herbsmith Rx","type":"Pet Vitamins \u0026 Supplements","tags":["Authorization_Required","Health_Need_Neurological","Health_Need_Reproductive","Health_Need_Respiratory","Herb_Type_Powder","Species_Cat","Species_Dog","Species_Horse","Vendor_Herbsmith_Rx"],"price":7000,"price_min":7000,"price_max":22200,"available":true,"price_varies":true,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":40018903171142,"title":"Powder - Canine Blend \/ 75 g Powder","option1":"Powder - Canine Blend","option2":"75 g Powder","option3":null,"sku":"HDTC-75","requires_shipping":true,"taxable":true,"featured_image":{"id":29685061451846,"product_id":6898217877574,"position":2,"created_at":"2022-10-08T07:13:03-05:00","updated_at":"2022-10-08T09:33:07-05:00","alt":"Herbsmith Rx Di Tan San Herbal Formula for Cats, Dogs and Horses Herbal Powder","width":960,"height":997,"src":"\/\/tcvmpet.com\/cdn\/shop\/products\/herbsmith3_969x997px_d1aac9a0-157a-40fc-9fca-c11fb6b93698-sw.jpg?v=1665239587","variant_ids":[40018903171142]},"available":true,"name":"Herbsmith Rx Di Tan San Herbal Formula for Cats, Dogs and Horses - 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Equine\/Horse Blend \/ 900 g Powder","public_title":"Powder - Equine\/Horse Blend \/ 900 g Powder","options":["Powder - Equine\/Horse Blend","900 g Powder"],"price":17700,"weight":900,"compare_at_price":null,"inventory_management":null,"barcode":"718122571321","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":40018903433286,"title":"Powder - Equine\/Horse Blend \/ 1200 g Powder","option1":"Powder - Equine\/Horse Blend","option2":"1200 g Powder","option3":null,"sku":"HDTH-1200","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Herbsmith Rx Di Tan San Herbal Formula for Cats, Dogs and Horses - Powder - Equine\/Horse Blend \/ 1200 g Powder","public_title":"Powder - Equine\/Horse Blend \/ 1200 g Powder","options":["Powder - Equine\/Horse Blend","1200 g Powder"],"price":22200,"weight":1200,"compare_at_price":null,"inventory_management":null,"barcode":"718122571338","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/tcvmpet.com\/cdn\/shop\/products\/RxLineup-e1459798560289_e394fd51-02b4-42a9-89a7-84fb2fa8dc5b.jpg?v=1651174876","\/\/tcvmpet.com\/cdn\/shop\/products\/herbsmith3_969x997px_d1aac9a0-157a-40fc-9fca-c11fb6b93698-sw.jpg?v=1665239587"],"featured_image":"\/\/tcvmpet.com\/cdn\/shop\/products\/RxLineup-e1459798560289_e394fd51-02b4-42a9-89a7-84fb2fa8dc5b.jpg?v=1651174876","options":["Herb Type","Herb Size"],"media":[{"alt":"Herbsmith Rx Di Tan San Herbal Formula for Cats, Dogs and Horses","id":21473469726790,"position":1,"preview_image":{"aspect_ratio":1.638,"height":260,"width":426,"src":"\/\/tcvmpet.com\/cdn\/shop\/products\/RxLineup-e1459798560289_e394fd51-02b4-42a9-89a7-84fb2fa8dc5b.jpg?v=1651174876"},"aspect_ratio":1.638,"height":260,"media_type":"image","src":"\/\/tcvmpet.com\/cdn\/shop\/products\/RxLineup-e1459798560289_e394fd51-02b4-42a9-89a7-84fb2fa8dc5b.jpg?v=1651174876","width":426},{"alt":"Herbsmith Rx Di Tan San Herbal Formula for Cats, Dogs and Horses Herbal Powder","id":21966533361734,"position":2,"preview_image":{"aspect_ratio":0.963,"height":997,"width":960,"src":"\/\/tcvmpet.com\/cdn\/shop\/products\/herbsmith3_969x997px_d1aac9a0-157a-40fc-9fca-c11fb6b93698-sw.jpg?v=1665239587"},"aspect_ratio":0.963,"height":997,"media_type":"image","src":"\/\/tcvmpet.com\/cdn\/shop\/products\/herbsmith3_969x997px_d1aac9a0-157a-40fc-9fca-c11fb6b93698-sw.jpg?v=1665239587","width":960}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cdiv style=\"text-align: right;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0021\/2110\/5457\/files\/veterinary_authorizaton_required_for_tcvm_herbal_formulas_240x240.jpg?v=1787081808\" alt=\"Veterinary Authorization Required for TCVM Herbal Formulas - TCVM Pet Supply\" style=\"margin: 5px 5px 5px 5px; float: right;\"\u003e\u003c\/div\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eHerbsmith Rx Di Tan San is a classical Chinese herbal formula recommended by holistic veterinarians to clear phlegm, open the orifices, and tonify qi in dogs, cats, and horses. Also known as Scour Phlegm Powder, this nine-herb formula addresses the TCVM pattern of phlegm obstructing and misting the heart orifices, the mechanism responsible for the neurological and cognitive presentations that arise when accumulated phlegm obstructs the clear orifices of the heart and brain: seizures, sudden collapse or loss of consciousness, altered mentation, ataxia, vertigo, behavioral changes, and cognitive clouding from phlegm blocking the clear yang from ascending to the head and the heart spirit from expressing clearly. Di Tan San is built on the Er Chen San foundation (Ban Xia, Ju Hong, Fu Ling) and extends it with four additional herbs that dramatically amplify the phlegm-dissolving and orifice-opening strategy: Dan Nan Xing (bile-processed arisaema, the signature phlegm-wind dissolving and orifice-opening herb), Shi Chang Pu (the classical aromatic orifice-opener that directly opens the heart orifices blocked by phlegm), Zhu Ru (bamboo shavings that cool phlegm-heat and harmonize the stomach to stop phlegm generation from the middle jiao), and Zhi Shi (immature bitter orange that strongly descends qi and breaks up phlegm accumulations in the channels and orifices). Ren Shen tonifies the yuan qi to support the formula's intensive phlegm-scouring action, and Gan Cao harmonizes the formula's herbs. Di Tan San treats phlegm obstruction of the orifices at a level of severity and neurological depth that the base Er Chen San formula cannot reach, making it the appropriate choice when phlegm accumulation has progressed to the point of obstructing consciousness, generating wind-phlegm movement disorders, or producing the sudden and episodic neurological presentations characteristic of phlegm misting the heart and generating liver wind. Well suited for dogs, cats, and horses presenting with phlegm obstructing the heart orifices and generating internal wind, characterized by episodic or sudden altered consciousness, seizure activity, or collapse from phlegm-wind obstruction; ataxia, incoordination, or abnormal gait from phlegm obstructing the clear yang's ascent and generating wind in the channels; cognitive clouding, altered behavior, or unresponsiveness from phlegm misting the heart spirit; vertigo and head-shaking from phlegm-wind obstructing the channels of the head; a pale or dusky tongue with a white or yellow greasy coating reflecting the phlegm accumulation; and a slippery or wiry-slippery pulse reflecting the phlegm and phlegm-wind. Available as a concentrated powder mixed into food; cats and dogs use the Canine Blend, while horses use the Equine\/Horse Blend. Dosing varies by species and body weight, and your authorizing veterinarian will provide specific guidance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVETERINARY AUTHORIZATION REQUIRED: \u003ca href=\"https:\/\/tcvmpet.com\/pages\/get-an-authorization\" rel=\"noopener\" style=\"color: rgb(0, 0, 0);\" target=\"_blank\"\u003eSubmit Your Authorization Request\u003c\/a\u003e or \u003ca href=\"https:\/\/tcvmpet.com\/pages\/schedule-a-consultation\" rel=\"noopener\" style=\"color: rgb(0, 0, 0);\" target=\"_blank\"\u003eRequest a TCVM Telemedicine Consultation\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eWhat It Supports\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003ePhlegm scouring and orifice opening through Dan Nan Xing as the signature phlegm-wind dissolving and orifice-opening herb extending the formula's phlegm-transforming action to the neurological level:\u003c\/strong\u003e Scours out entrenched phlegm and opens the heart orifices through Dan Nan Xing (bile-processed arisaema powder, Pulvis Arisaemae cum Felle Bovis), the formula's most potent phlegm-dissolving and orifice-opening herb and the key ingredient that distinguishes Di Tan San from the base Er Chen San strategy. Dan Nan Xing is Tian Nan Xing (Arisaema rhizome, jack-in-the-pulpit) processed with bovine bile (niu dan, ox bile), a processing method that adds the bile's cold, bitter, phlegm-heat-clearing, and liver-wind-calming action to Nan Xing's inherently powerful phlegm-dissolving and wind-phlegm-dispersing properties. Bile processing converts Nan Xing's warm, drying, strongly irritant nature into a cold-natured, bitter, phlegm-heat-clearing, liver-wind-calming action that specifically targets the phlegm-wind and phlegm-heat patterns responsible for the neurological presentations Di Tan San treats. Dan Nan Xing reaches phlegm lodged at deeper channel levels than Ban Xia can access, dissolving phlegm accumulated in the orifices, channels, and collaterals of the head and brain, and its liver-wind-calming action addresses the wind component of the phlegm-wind pattern responsible for seizure and movement-disorder presentations. Raw Nan Xing is toxic; only the bile-processed form (Dan Nan Xing) is used clinically. Dan Nan Xing's strong bioactive alkaloid content warrants veterinary oversight and may interact with anesthetic and neuromuscular medications; veterinary review is required.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eAromatic orifice opening and heart spirit clearing through Shi Chang Pu directly unblocking the heart orifices from phlegm obstruction and restoring clear communication between the heart spirit and the sensory and cognitive orifices:\u003c\/strong\u003e Opens the heart orifices, transforms turbid phlegm, and promotes the ascent of clear yang to the orifices of the head through Shi Chang Pu (sweetflag rhizome, Rhizoma Acori Graminei), the classical aromatic orifice-opening herb that acts directly on the phlegm obstruction blocking the heart and sensory orifices. Shi Chang Pu's acrid, aromatic, and warm nature penetrates the phlegm obstruction in the orifices and channels of the heart and head, dispersing the phlegm-damp and turbid yin that is blocking the heart spirit, disrupting clear consciousness, and obstructing the ascending clear yang that maintains alertness and sensory clarity. In TCVM, the heart houses the shen (spirit\/consciousness), and when phlegm accumulates and obstructs the heart's orifices, the shen cannot express clearly, generating the altered mentation, cognitive clouding, behavioral change, and loss of consciousness that characterize the phlegm-misting-the-orifices pattern. Shi Chang Pu's specific action of opening the heart orifices and dispersing the turbid phlegm that blocks the shen makes it the essential orifice-opening herb in Di Tan San; it is the herb that directly addresses the consciousness-obstructing dimension of the phlegm pattern that Dan Nan Xing's phlegm-dissolving action exposes by breaking up the phlegm accumulation. Shi Chang Pu has mild interaction potential with sedative medications and anesthetic agents through its aromatic volatile oil content; veterinary monitoring is warranted in animals on these medications.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eQi descending and phlegm breaking through Zhi Shi strongly moving the qi downward to break up phlegm accumulations and drive phlegm out of the orifices and channels where it has lodged:\u003c\/strong\u003e Strongly descends the qi, breaks up phlegm accumulations, and resolves food stagnation through Zhi Shi (immature bitter orange fruit, Fructus Immaturus Citri Aurantii), the forceful qi-descending herb that addresses the qi stagnation component of the phlegm obstruction pattern. In TCVM phlegm pathology, phlegm accumulates and becomes entrenched in the orifices and channels when qi stagnates and loses its ability to move phlegm out of the channels and downward through the body's normal phlegm-resolving pathways. Zhi Shi's strong downward qi-moving and phlegm-breaking action reverses this stagnation by forcefully descending the qi in the chest, middle jiao, and channels, breaking up consolidated phlegm masses that have accumulated and hardened in the orifices, and opening the qi movement pathways that allow Dan Nan Xing and Shi Chang Pu's orifice-opening action to take effect. Zhi Shi also breaks up food stagnation in the middle jiao, addressing any digestive phlegm-generating component of the pattern. Zhi Shi has interaction potential with CYP3A4-metabolized medications through its furanocoumarin content (bergapten and related compounds); veterinary review is warranted in animals on narrow-therapeutic-index CYP3A4 medications including cyclosporine and tacrolimus.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003ePhlegm-heat cooling and stomach harmonizing through Zhu Ru clearing phlegm-heat from the stomach and lung channels and stopping phlegm production at the middle jiao source:\u003c\/strong\u003e Clears phlegm-heat, cools the stomach, and stops vomiting and nausea from phlegm-heat obstructing the middle jiao through Zhu Ru (bamboo shavings, Caulis Bambusae in Taeniis), the phlegm-heat-clearing and stomach-harmonizing herb that addresses the heat component of the phlegm pattern and prevents new phlegm generation from middle jiao heat. When phlegm accumulation generates heat (phlegm stagnating in the channels generates secondary heat from the obstruction), the phlegm-heat combination becomes more tenacious and difficult to dissolve than cold phlegm alone, and the middle jiao heat accelerates phlegm production from the stomach and lung channels. Zhu Ru's cold, sweet nature clears this phlegm-heat from the stomach and lung, cools the middle jiao to stop new phlegm generation from heat, and harmonizes the stomach qi to prevent the rebellious stomach qi that phlegm-heat obstruction generates. Zhu Ru's cooling action also complements Dan Nan Xing's bile-processed cold nature in addressing the heat dimension of phlegm-wind, preventing the formula's warming phlegm-drying herbs (Ban Xia, Ju Hong) from excessively warming the pattern and worsening any heat component. Zhu Ru is generally well tolerated with minimal drug interactions.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eEr Chen San base phlegm transformation and dampness drying through Ban Xia, Ju Hong, and Fu Ling providing the foundational phlegm-transforming and spleen-supporting action on which Di Tan San's stronger orifice-opening strategy is built:\u003c\/strong\u003e Transforms phlegm, dries dampness, regulates the qi, and strengthens the spleen through the Er Chen San core of Ban Xia, Ju Hong, and Fu Ling, the foundational phlegm-transforming strategy that underlies Di Tan San's more intensive orifice-opening approach. Ban Xia (processed pinellia rhizome) dries dampness and transforms phlegm at the spleen and stomach level, addressing the phlegm-damp substrate from which the more severe phlegm-wind and phlegm-orifice-obstructing patterns develop. Ju Hong (red tangerine peel) regulates the qi and assists phlegm transformation through its acrid aromatic qi-moving action, preventing phlegm re-accumulation from qi stagnation and assisting the stronger qi-moving action of Zhi Shi. Fu Ling strengthens the spleen and drains dampness, addressing the spleen qi vacuity root cause of the dampness accumulation that generates and sustains the phlegm pattern. The Er Chen San base ensures that Di Tan San's intensive orifice-opening strategy is supported by the fundamental phlegm-transforming and spleen-strengthening action needed to clear the phlegm substrate that the orifice-opening herbs expose and dissolve.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eQi tonification and formula harmonization through Ren Shen and Gan Cao supporting the yuan qi during the formula's intensive phlegm-scouring action and coordinating the formula's nine herbs into a therapeutically coherent whole:\u003c\/strong\u003e Tonifies the yuan qi and harmonizes the formula through Ren Shen (ginseng root) and Gan Cao (raw licorice root), the tonifying and harmonizing pair that prevents the formula's intensive phlegm-scouring and orifice-opening action from depleting the righteous qi and ensures the formula's nine herbs work as a coordinated therapeutic whole. Di Tan San's phlegm-scouring strategy requires substantial qi to drive the phlegm out of the deep orifices and channels where it has lodged; Ren Shen's yuan qi tonification provides this foundation, preventing the phlegm-dissolving herbs from depleting the qi as they work. The formula uses raw Gan Cao (not honey-fried Zhi Gan Cao), providing harmonizing and modest spleen qi support with a slightly more clearing and moderating action than the warming, tonifying Zhi Gan Cao would provide.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eTCVM Principles\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003ePrimary action, phlegm misting the heart orifices and generating wind-phlegm through the Er Chen San base extended by Dan Nan Xing, Shi Chang Pu, Zhi Shi, and Zhu Ru into a formula capable of reaching the neurological and consciousness-obstructing presentations that the base phlegm-transforming strategy cannot address:\u003c\/strong\u003e Addresses the phlegm-misting-the-orifices pattern and the wind-phlegm pattern responsible for the neurological and cognitive presentations that arise when phlegm accumulation reaches the orifices of the heart and the channels of the head and brain. In TCVM pathophysiology, phlegm is first generated by spleen qi vacuity, allowing fluid to accumulate and congeal (the Er Chen San pattern); when this phlegm accumulation persists and deepens, it can move upward along the liver and gallbladder channels to obstruct the orifices of the head and heart, generating the phlegm-misting-the-orifices pattern that manifests as altered consciousness and cognitive signs. When accumulated phlegm combines with liver wind (arising from liver yin vacuity, liver fire, or phlegm obstruction generating internal wind), the phlegm-wind combination generates seizure, movement disorder, and sudden neurological onset presentations characteristic of wind-phlegm. Di Tan San addresses both the phlegm substrate (through the Er Chen San base) and the neurological depth of the phlegm obstruction (through Dan Nan Xing's phlegm-wind dissolving, Shi Chang Pu's orifice-opening, Zhi Shi's phlegm-breaking qi descension, and Zhu Ru's phlegm-heat clearing), making it the appropriate formula when the phlegm pattern has progressed to generating neurological or consciousness-obstructing manifestations.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eClassical antecedent, Di Tan San as a derived formula from the Er Chen San phlegm-treatment tradition:\u003c\/strong\u003e Di Tan San's relationship to Er Chen San reflects the same formula-building strategy as Wen Dan Tang (adding phlegm-heat herbs to the Er Chen base for phlegm-heat disturbing the spirit) and Qing Qi Hua Tan Wan (adding lung heat-clearing herbs for phlegm-heat in the lung). The Er Chen San core is preserved and extended with additional herbs that direct the base phlegm-transforming strategy to the specific pathogenic factor or tissue location requiring treatment. Di Tan San's additions (Dan Nan Xing, Shi Chang Pu, Zhi Shi, Zhu Ru) are specifically selected for their orifice-opening, phlegm-wind dissolving, and neurological-level phlegm-clearing actions, reflecting the classical TCVM formulation principle that the severity and location of the phlegm pattern determines which herbs are added to the Er Chen San base. The pattern hierarchy for phlegm formula selection from the Er Chen San tradition is: Er Chen San for basic phlegm-damp; Wen Dan Tang for phlegm-heat disturbing the gallbladder and heart spirit; Di Tan Tang and Di Tan San for phlegm misting the orifices and wind-phlegm; and Da Di Tan Tang (with stronger wind-dissolving and orifice-opening herbs) for the most severe wind-phlegm stroke presentations.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003ePattern cautions:\u003c\/strong\u003e Not appropriate for pure cold-phlegm patterns without orifice obstruction or for yin vacuity phlegm, where drying herbs may worsen yin depletion. Veterinary pattern assessment and medication review are required.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eUrgent signs:\u003c\/strong\u003e Seizures, collapse, loss of consciousness, or sudden neurological changes require prompt veterinary assessment. Do not delay urgent care while waiting for an herbal formula to take effect.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eAvailable Forms\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003ePowder - Canine Blend (for dogs and cats):\u003c\/strong\u003e Available in 75 g, 150 g, 500 g, 900 g, and 1200 g sizes; mix into food at the recommended dose for your pet's weight. Cats and dogs both use this blend.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003ePowder - Equine\/Horse Blend (for horses only):\u003c\/strong\u003e Available in 150 g, 500 g, 900 g, and 1200 g sizes; mix into grain at the recommended dose for your horse.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSuggested Use\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eCanine Blend Powder - Dogs under 30 lbs:\u003c\/strong\u003e ½ tsp twice daily, or as directed by your veterinarian.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eCanine Blend Powder - Dogs 30-80 lbs:\u003c\/strong\u003e 1 tsp twice daily, or as directed by your veterinarian.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eCanine Blend Powder - Dogs 80-120 lbs:\u003c\/strong\u003e 1½ tsp twice daily, or as directed by your veterinarian.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eCanine Blend Powder - Dogs over 120 lbs:\u003c\/strong\u003e 2 tsp twice daily, or as directed by your veterinarian.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eCanine Blend Powder - Cats:\u003c\/strong\u003e ¼ tsp twice daily, or as directed by your veterinarian.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eEquine\/Horse Blend - 1,000 lb horse, initial dose:\u003c\/strong\u003e Two tablespoons twice daily, or as directed by your veterinarian. Continue the initial schedule for 20 days, or as directed by your veterinarian.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eEquine\/Horse Blend - 1,000 lb horse, maintenance dose:\u003c\/strong\u003e After the initial period, give two tablespoons once daily in grain, or as directed by your veterinarian.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eIf the horse initially refuses, start with a small amount mixed into grain and gradually increase until accustomed to the taste, or as directed by your veterinarian. Most horses will readily accept the herbs in their grain. Confirm the dog dose at the overlapping 80 lb boundary with your authorizing veterinarian. Veterinary authorization and medication review are required before use. This formula is not appropriate for pure cold-phlegm patterns without orifice obstruction or for yin vacuity phlegm. Seizures, collapse, loss of consciousness, or sudden neurological changes require prompt veterinary assessment; do not delay urgent care.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eIngredients\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eActive Ingredients:\u003c\/strong\u003e Ban Xia (Rhizoma Pinelliae Ternatae), Ju Hong (Pericarpium Citri Erythrocarpae), Fu Ling (Sclerotium Poriae Cocos), Zhi Shi (Fructus Immaturus Citri Aurantii), Zhu Ru (Caulis Bambusae in Taeniis), Dan Nan Xing (Pulvis Arisaemae cum Felle Bovis), Shi Chang Pu (Rhizoma Acori Graminei), Ren Shen (Radix Ginseng), Gan Cao (Radix Glycyrrhizae Uralensis)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eInactive Ingredient:\u003c\/strong\u003e Flaxseed\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVETERINARY AUTHORIZATION REQUIRED: \u003ca href=\"https:\/\/tcvmpet.com\/pages\/get-an-authorization\" rel=\"noopener\" style=\"color: rgb(0, 0, 0);\" target=\"_blank\"\u003eSubmit Your Authorization Request\u003c\/a\u003e or \u003ca href=\"https:\/\/tcvmpet.com\/pages\/schedule-a-consultation\" rel=\"noopener\" style=\"color: rgb(0, 0, 0);\" target=\"_blank\"\u003eRequest a TCVM Telemedicine Consultation\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eActive Ingredient TCVM Actions\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eDi Tan San is a nine-herb formula built on the Er Chen San phlegm-transforming base (Ban Xia, Ju Hong, Fu Ling) and extended with four orifice-opening and phlegm-wind-dissolving herbs (Dan Nan Xing, Shi Chang Pu, Zhi Shi, Zhu Ru) plus a qi-tonifying and harmonizing pair (Ren Shen, Gan Cao) to address phlegm misting the heart orifices and phlegm-wind at the neurological level:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eDan Nan Xing (Pulvis Arisaemae cum Felle Bovis) - Bile-processed Arisaema \/ Jack-in-the-Pulpit with Bovine Bile:\u003c\/strong\u003e Dissolves phlegm-wind and phlegm-heat, opens the orifices, calms liver wind, and clears heat from the lung and heart channels; the signature phlegm-wind dissolving herb that defines Di Tan San's neurological indication and is the most potent phlegm-wind and orifice-obstructing phlegm-clearing herb in the classical materia medica. Dan Nan Xing is Tian Nan Xing (Arisaema rhizome) processed with bovine bile (ox bile), which transforms the raw herb's warm, toxic, strongly drying nature into a cold, bitter, phlegm-heat-clearing and liver-wind-calming action targeted specifically at phlegm-wind, phlegm misting the orifices, and phlegm-heat obstructing the heart and brain channels. Raw Tian Nan Xing is toxic and must not be substituted for the processed ingredient. Bile processing does not remove the need for veterinary supervision. Dan Nan Xing is indicated specifically for phlegm-wind patterns involving seizures, altered consciousness, and neurological presentations, and should not be used for cold phlegm patterns (where warm, drying Ban Xia-based formulas are appropriate) or yin vacuity phlegm. Dan Nan Xing has strong bioactive alkaloid content and requires veterinary oversight; interactions with anesthetic agents, neuromuscular blocking agents, and antiepileptic medications warrant a comprehensive veterinary medication review.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eShi Chang Pu (Rhizoma Acori Graminei) - Sweetflag Rhizome \/ Stone Calamus \/ Acorus Rhizome:\u003c\/strong\u003e Opens the heart orifices, transforms turbid phlegm-damp, promotes the ascent of clear yang to the orifices, and calms the spirit obstructed by phlegm; the classical aromatic orifice-opening herb that directly addresses the consciousness-obstructing dimension of the phlegm-misting-the-orifices pattern. Shi Chang Pu's acrid, aromatic, warm, and penetrating nature disperses the turbid phlegm-damp obstructing the heart's orifices, allowing the heart spirit to express clearly, restoring the clear yang's ascent to the sensory and cognitive orifices of the head, and opening the channel pathways that phlegm obstruction has blocked. Shi Chang Pu is found in virtually every classical formula for phlegm misting the orifices and is considered the essential orifice-opening herb of the TCVM materia medica for this pattern. Shi Chang Pu contains beta-asarone and related aromatic volatile oils that contribute to its orifice-opening action; beta-asarone has mild CNS-modulating effects and interaction potential with sedative, anesthetic, and antiepileptic medications. Veterinary monitoring is warranted in animals on these medications.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eZhi Shi (Fructus Immaturus Citri Aurantii) - Immature Bitter Orange Fruit \/ Unripe Bitter Orange:\u003c\/strong\u003e Strongly descends the qi, breaks up phlegm and food accumulations, and opens obstructions in the chest and abdomen; the forceful qi-descending herb that reverses the qi stagnation allowing phlegm to accumulate and lodge in the channels and orifices, driving phlegm downward and out of the locations where it has consolidated. Zhi Shi's bitter, acrid, and cool nature makes it significantly more forceful than Chen Pi or Ju Hong in moving the qi and breaking phlegm accumulations; its action in Di Tan San is to create the downward qi movement that carries Dan Nan Xing and Shi Chang Pu's phlegm-dissolving action through the channels and orifices and drives the dissolved phlegm out through the body's normal elimination pathways. Zhi Shi contains furanocoumarin compounds (bergapten and related) with CYP3A4 inhibitory potential; veterinary review is warranted in animals on cyclosporine, tacrolimus, statins, and other narrow-therapeutic-index CYP3A4-metabolized medications.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eZhu Ru (Caulis Bambusae in Taeniis) - Bamboo Shavings \/ Bamboo Culm Shavings:\u003c\/strong\u003e Clears phlegm-heat from the lung and stomach channels, cools the stomach, stops vomiting and nausea from phlegm-heat, and clears heat from the heart and chest; the phlegm-heat-clearing and stomach-harmonizing herb that addresses the heat dimension of the phlegm pattern and prevents middle jiao heat from continuously generating new phlegm while the orifice-opening herbs work. Zhu Ru's sweet, cold, phlegm-heat-clearing action specifically targets lung and stomach channel phlegm-heat, working alongside Dan Nan Xing's bile-processed, cold, phlegm-heat-clearing action to address the thermal component of the phlegm-wind pattern at the middle jiao and lung levels. Zhu Ru also prevents the rebellious stomach qi generated by phlegm-heat obstruction, addressing nausea and vomiting that may accompany severe phlegm-orifice obstruction. Zhu Ru is generally well tolerated with minimal drug interactions.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eBan Xia (Rhizoma Pinelliae Ternatae) - Pinellia Rhizome \/ Half Summer:\u003c\/strong\u003e Dries dampness, transforms phlegm, descends rebellious stomach qi, and dissipates phlegm nodules; the principal phlegm-transforming herb of the Er Chen San base, providing the foundational dampness-drying and phlegm-transforming action on which Di Tan San's orifice-opening strategy is built. In Di Tan San, Ban Xia addresses the phlegm-damp substrate at the spleen and stomach level, clearing the source of phlegm accumulation that Dan Nan Xing and Shi Chang Pu clear from the orifices. Processed Ban Xia is always used clinically; raw Ban Xia is toxic. Ban Xia has anticholinergic interaction potential, and its warm, drying nature is contraindicated for yin vacuity phlegm and heat bi patterns; veterinary oversight is required.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eJu Hong (Pericarpium Citri Erythrocarpae) - Red Tangerine Peel \/ Erythrocarpa Citrus Peel:\u003c\/strong\u003e Regulates the qi, dries dampness, and transforms phlegm through its acrid aromatic qi-moving action; the qi-regulating herb of the Er Chen San base that prevents phlegm re-accumulation from qi stagnation and assists Zhi Shi's stronger qi-descending action in maintaining the downward qi movement that carries phlegm out of the channels and orifices. Ju Hong is generally well tolerated; mild CYP3A4 interaction potential from its flavonoid content at high doses.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eFu Ling (Sclerotium Poriae Cocos) - Poria \/ Tuckahoe:\u003c\/strong\u003e Strengthens the spleen, promotes water metabolism, drains dampness, and calms the spirit; the spleen-strengthening and dampness-draining herb of the Er Chen San base that addresses the spleen qi vacuity root cause of the dampness accumulation generating and sustaining the phlegm. Fu Ling's spirit-calming action is particularly relevant in Di Tan San, where phlegm obstruction of the heart orifices disturbs the heart spirit; Fu Ling's heart-nourishing and spirit-calming action gently supports the heart spirit, while Dan Nan Xing and Shi Chang Pu clear the phlegm obstruction blocking it. Fu Ling is generally well tolerated; its water-promoting action warrants monitoring in animals on diuretic medications.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eRen Shen (Radix Ginseng) - Asian Ginseng Root:\u003c\/strong\u003e Strongly tonifies the yuan qi and spleen qi and generates fluids; the principal qi tonic that provides the constitutional qi support needed for the formula's intensive phlegm-scouring action and prevents the phlegm-dissolving and orifice-opening herbs from depleting the righteous qi as they work through the deep channels and orifices. Ren Shen's yuan qi tonification is especially important in Di Tan San because phlegm misting the orifices is typically a more severe and constitutionally depleting pattern than simple phlegm-damp, and the animal's righteous qi may already be significantly insufficient when the phlegm has progressed to the neurological level. Ren Shen has interaction potential with anticoagulant, stimulant, antidiabetic, and antihypertensive medications; veterinary review is required.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eGan Cao (Radix Glycyrrhizae Uralensis) - Raw Licorice Root:\u003c\/strong\u003e Harmonizes the formula's herbs, moderates the harsh or conflicting actions of the formula's diverse herbs, and provides modest spleen qi support; the harmonizing envoy that coordinates Di Tan San's nine herbs into a coherent therapeutic strategy. The formula uses raw Gan Cao (not honey-fried Zhi Gan Cao), which provides a slightly more clearing and moderating action than Zhi Gan Cao's warming, tonifying nature, appropriate in a formula that includes cold-natured phlegm-heat-clearing herbs (Dan Nan Xing, Zhu Ru, Zhi Shi). Gan Cao at sustained doses has pseudoaldosteronism-like interaction potential with corticosteroids, diuretics, and antihypertensive medications; veterinary review is warranted in animals on these medications.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003ePotential Drug Interactions\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eDi Tan San contains phlegm-transforming and aromatic orifice-opening ingredients, including Dan Nan Xing and Shi Chang Pu, together with qi-regulating citrus ingredients, qi-tonifying Ren Shen, and licorice root (Gan Cao). Ingredients with potential effects on the nervous system, medication metabolism, glucose regulation, blood clotting, and fluid balance warrant review when used alongside prescriptions. Pets taking prescription medications should use this formula under veterinary supervision because herb-drug interaction research in dogs and cats is limited. Horses taking prescription medications also require veterinary review. The formula is not appropriate for pure cold-phlegm patterns without orifice obstruction or for yin vacuity phlegm, where drying herbs may worsen yin depletion.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eMedication categories warranting extra caution include antiepileptic medications, anesthetics, sedatives, neuromuscular blocking agents, medications processed by the liver including cyclosporine and tacrolimus, anticoagulant or antiplatelet medications, antidiabetic medications, stimulants, antihypertensive medications, corticosteroids, diuretics, and multiple concurrent prescription medications. Do not change prescribed seizure medication without veterinary guidance. Your authorizing veterinarian can determine appropriateness based on your animal's condition, current medications, and laboratory results, together with confirmation of the phlegm-misting-the-orifices or wind-phlegm pattern through tongue, pulse, and clinical assessment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eVETERINARY AUTHORIZATION REQUIRED: \u003ca href=\"https:\/\/tcvmpet.com\/pages\/get-an-authorization\" rel=\"noopener\" style=\"color: rgb(0, 0, 0);\" target=\"_blank\"\u003eSubmit Your Authorization Request\u003c\/a\u003e or \u003ca href=\"https:\/\/tcvmpet.com\/pages\/schedule-a-consultation\" rel=\"noopener\" style=\"color: rgb(0, 0, 0);\" target=\"_blank\"\u003eRequest a TCVM Telemedicine Consultation\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eFrequently Asked Questions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3 style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eWhat conditions is Di Tan San used for in TCVM?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eIn Traditional Chinese Veterinary Medicine, Di Tan San is indicated for the phlegm-misting-the-orifices pattern and the wind-phlegm pattern, where phlegm accumulation has progressed beyond the lung and middle jiao level to obstruct the heart orifices and the channels of the head and brain, generating the neurological and cognitive presentations characteristic of phlegm at the consciousness and movement-control level. The phlegm-misting-the-orifices pattern generates altered consciousness, cognitive clouding, behavioral change, and episodic unresponsiveness as phlegm blocks the heart spirit's expression and the clear yang's ascent to the sensory and cognitive orifices of the head. The wind-phlegm pattern generates seizures, ataxia, tremors, and movement disorders when the accumulated phlegm combines with liver wind, with the phlegm providing the medium in which wind generates and the wind driving the phlegm's upward movement into the channels of the head and brain. This pattern also addresses vertigo and head-shaking from phlegm-wind obstructing the head channels. The tongue for these patterns is typically pale or dusky with a white or yellow greasy coating (reflecting phlegm and, when heat is present, phlegm-heat), and the pulse is slippery or wiry-slippery (reflecting the phlegm-wind combination). Your authorizing veterinarian will differentiate the phlegm-misting-the-orifices pattern from other causes of altered consciousness and seizure in animals, confirm the TCVM mechanism, and determine whether Di Tan San alone or in combination with additional wind-calming herbs is appropriate for your animal's specific presentation. Seizures, collapse, loss of consciousness, or sudden neurological changes require prompt veterinary assessment; do not delay urgent care.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eHow is Di Tan San administered to dogs, cats, and horses?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eMix the powder into food or grain. Dogs and cats use the Canine Blend. For dogs under 30 lbs, give ½ tsp twice daily, or as directed by your veterinarian. For dogs 30-80 lbs, give 1 tsp twice daily, or as directed by your veterinarian. For dogs 80-120 lbs, give 1½ tsp twice daily, or as directed by your veterinarian. For dogs over 120 lbs, give 2 tsp twice daily, or as directed by your veterinarian. For cats, give ¼ tsp twice daily, or as directed by your veterinarian. Confirm the dog dose at the overlapping 80 lb boundary with your authorizing veterinarian.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eHorses use the Equine\/Horse Blend. For a 1,000 lb horse, give two tablespoons twice daily, or as directed by your veterinarian. Continue the initial schedule for 20 days, or as directed by your veterinarian. Then give two tablespoons once daily in grain, or as directed by your veterinarian. If the horse initially refuses, start with a small amount mixed into grain and gradually increase until accustomed to the taste, or as directed by your veterinarian. Comprehensive veterinary medication review is required before use, particularly for animals taking antiepileptic, anesthetic, sedative, or neuromuscular medications. Do not change prescribed seizure medication without veterinary guidance. Your veterinarian will guide any transition to a maintenance spleen-strengthening and phlegm-preventing formula once the pattern has stabilized.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eHow long does it take to see results with Di Tan San?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eAs a formula targeting the phlegm-misting-the-orifices and wind-phlegm patterns, Di Tan San's response timeline depends on the severity and chronicity of the phlegm obstruction and the strength of the animal's righteous qi. In presentations with active phlegm-wind signs (recent-onset ataxia, altered mentation, episodic neurological events from phlegm-wind), early improvement may be seen within 2 to 4 weeks as the formula's orifice-opening and phlegm-dissolving action begins clearing the phlegm accumulation from the channels and orifices of the head. More complete resolution of the phlegm-misting pattern, including normalization of the tongue coating and pulse and sustained improvement in the neurological or cognitive signs, typically requires 4 to 12 weeks depending on the depth and duration of the phlegm accumulation. Chronic or deeply established phlegm-orifice obstruction with significant constitutional qi vacuity may require longer treatment and a sustained maintenance strategy to prevent recurrence. Your authorizing veterinarian will monitor the tongue, pulse, and clinical neurological signs throughout the treatment course and coordinate Di Tan San's use with any concurrent conventional veterinary management of the neurological presentation. Treatment duration and reassessment timing should follow your veterinarian's directions. Do not wait for an herbal response when seizures, collapse, loss of consciousness, or sudden neurological changes occur; seek prompt veterinary assessment.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eHow does Di Tan San differ from Er Chen San, and when does the veterinarian choose Di Tan San over Er Chen San?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eEr Chen San is the foundational phlegm-transforming formula for phlegm-damp accumulation in the lung, middle jiao, and channels at the respiratory, digestive, and general phlegm-damp level: productive cough, nausea and vomiting from phlegm, phlegm panting, and general phlegm-damp accumulation without neurological involvement. Di Tan San is the specialized derived formula appropriate when the phlegm pattern has progressed to obstruct the heart orifices and generate wind-phlegm at the neurological level: altered consciousness, cognitive clouding, seizures, ataxia, and movement disorders from phlegm-wind and phlegm-orifice obstruction. The clinical decision point is the presence of neurological or consciousness-obstructing signs: when phlegm generates altered mentation, episodic consciousness changes, seizure activity, or significant movement disorders, Di Tan San's Dan Nan Xing, Shi Chang Pu, Zhi Shi, and Zhu Ru provide the orifice-opening, phlegm-wind-dissolving, and neurological-level phlegm-clearing action that Er Chen San's simpler phlegm-transforming strategy cannot deliver. The veterinarian may use Er Chen San for milder phlegm-respiratory or phlegm-digestive presentations and transition to Di Tan San if the pattern deepens to include neurological signs, or use Di Tan San from the outset when the presenting signs already indicate phlegm at the orifice-obstructing and wind-phlegm level. Ongoing monitoring of tongue coating, pulse quality, and clinical signs guides formula selection and transition decisions throughout the treatment course.\u003c\/span\u003e\u003c\/p\u003e"}