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Kan Essentials Urinary Support Formula is a classical Chinese herbal formula recommended by holistic veterinarians to dispel blood stasis in the bladder, address chronic damp heat accumulation in the bladder channel, move qi in the lower abdomen, and support healthy bladder function in dogs and cats presenting with bladder blood stasis with damp heat. Also known by its classical name Pang Guang Zhu Yu Tang (Drive Out Stasis from the Bladder Decoction), this eleven-herb formula is a Kan Essentials combination based on two classical formulas: Wu Yao Tang, which moves qi in the lower abdomen, and Shao Fu Zhu Yu Tang (Dispel Stasis in the Lower Palace), which moves blood in the lower burner. In TCVM, qi is the motive force for blood - when qi moves, blood moves; when qi stagnates, blood stagnates. Combining a qi-moving formula with a blood-moving formula creates a more potent and comprehensive lower-burner stasis-resolving strategy than either formula achieves alone, as the qi-moving herbs activate the blood-moving herbs and the blood-moving herbs remove the physical obstruction that perpetuates qi stagnation. From Wu Yao Tang, the formula borrows Wu Yao (lindera tuber) and Zhi Xiang Fu (prepared cyperus rhizome) to strongly move abdominal qi, and Dang Gui Wei (dong quai root tail) for its blood-moving function. From Shao Fu Zhu Yu Tang, the formula borrows its core blood-moving herbs: Zhi Yan Hu Suo (prepared corydalis), Chuan Xiong (sichuan lovage rhizome), Chi Shao (Chinese red peony root), Pu Huang (bulrush pollen), and Mo Yao (myrrh resin). Three additional herbs address the damp heat component of the combined pattern: Che Qian Cao (plantain herb) drains lingering damp heat from the bladder; Wang Bu Liu Xing (vaccaria seed) moves blood and drains dampness accumulations; and Shi Wei (pyrrosia leaf) supports healthy bladder function and clears damp heat. This formula is not appropriate as a standalone formula for blood stasis secondary to blood deficiency (where pairing with Liver Support Formula is recommended) or for kidney yang deficiency patterns (where Dispel Stasis in the Lower Palace is more appropriate); a TCVM veterinarian must confirm the pattern. Available in liquid extract and tablet forms. Dosing varies by species and body weight, and your authorizing veterinarian will provide specific guidance.
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Active Ingredients: Wu Yao (Lindera aggregate, tuber), Che Qian Cao (Plantago asiatica, whole herb), Shi Wei (Pyrrosia lingua, leaf), Dang Gui Wei (Angelica sinensis, root tail), Pu Huang (Typha angustifolia, pollen), Chi Shao (Paeonia lactiflora, red root), Zhi Yan Hu Suo (Corydalis yanhusuo, prepared tuber), Chuan Xiong (Ligusticum chuanxiong, rhizome), Mo Yao (Commiphora myrrha, resin), Zhi Xiang Fu (Cyperus rotundus, prepared rhizome), Wang Bu Liu Xing (Vaccaria hispanica, seed)
Inactive ingredients vary by form; liquid extracts contain alcohol and water; tablets may contain excipients standard to tablet manufacturing.
VETERINARY AUTHORIZATION REQUIRED: Submit Your Authorization Request or Request a TCVM Telemedicine Consultation
Urinary Support Formula (Pang Guang Zhu Yu Tang) combines eleven herbs in a dual-formula structure: qi-moving herbs from Wu Yao Tang (Wu Yao, Zhi Xiang Fu, and Dang Gui Wei) paired with blood-moving herbs from Shao Fu Zhu Yu Tang (Zhi Yan Hu Suo, Chuan Xiong, Chi Shao, Pu Huang, Mo Yao, and Dang Gui Wei), supplemented by three damp heat-clearing herbs (Che Qian Cao, Shi Wei, Wang Bu Liu Xing). Because qi is the motive force for blood in TCVM, the qi-moving foundation of Wu Yao Tang activates and potentiates the blood-activating strategy of Shao Fu Zhu Yu Tang:
Urinary Support Formula has a significant drug interaction profile given its concentration of potent blood-activating herbs. The formula contains multiple herbs with anticoagulant and antiplatelet properties: Dang Gui Wei (coumarin and ferulic acid), Chi Shao (paeoniflorin), Pu Huang, Mo Yao (resin anticoagulant effects), and Chuan Xiong (ligustilide), creating a substantial combined anticoagulant concern. Animals on warfarin, heparin, aspirin, clopidogrel, or other anticoagulant or antiplatelet medications require veterinary review before initiating this formula, and bleeding time monitoring may be appropriate during use. Zhi Yan Hu Suo's DHCB and THP alkaloid content warrant monitoring in animals on CNS-active medications and antidopaminergic drugs (metoclopramide, acepromazine); CYP2D6 involvement also warrants caution in animals on medications with narrow therapeutic windows metabolized via this route. Chuan Xiong's CYP3A4 interactions warrant monitoring in animals on medications metabolized through this pathway. Che Qian Cao's mild diuretic action warrants coordination with conventional diuretic management. Three herbs are contraindicated in pregnant animals (Dang Gui Wei, Zhi Yan Hu Suo, Mo Yao). This formula is not appropriate as a standalone formula for blood stasis secondary to blood deficiency or kidney yang deficiency.
Medication categories warranting extra caution: anticoagulant and antiplatelet medications (combined Dang Gui Wei, Chi Shao, Pu Huang, Mo Yao, and Chuan Xiong - significant combined concern), CNS-active and antidopaminergic medications (Zhi Yan Hu Suo alkaloids), CYP2D6 and CYP3A4-metabolized medications with narrow therapeutic windows (Zhi Yan Hu Suo and Chuan Xiong respectively), and diuretic medications (Che Qian Cao). Your authorizing veterinarian will determine appropriateness based on your pet's pattern diagnosis, current medications, urinary evaluation results, tongue quality, and pulse character.
VETERINARY AUTHORIZATION REQUIRED: Submit Your Authorization Request or Request a TCVM Telemedicine Consultation
In Traditional Chinese Veterinary Medicine, Urinary Support Formula (Pang Guang Zhu Yu Tang) addresses the pattern of blood stasis in the bladder with chronic damp heat accumulation - a combined pattern that involves physical obstruction of blood flow in the bladder channel (blood stasis) alongside accumulated heat and dampness in the bladder (damp heat). Clinical signs include occasional urinary dysfunction and difficulty with normal urinary flow from blood stasis obstructing the bladder; occasional water retention from qi and fluid stagnation in the lower burner; signs of occasional urinary tract irritation from damp heat accumulation; and increased lower abdominal tension from qi stagnation. The confirming tongue and pulse signs are: a dry, pale, or lavender to purple tongue body (reflecting blood stasis and fluid insufficiency from heat) with sometimes a yellow coat (reflecting damp heat); and a tense, choppy pulse (tense reflecting qi constraint, choppy reflecting blood stasis and insufficient fluid movement). Together, these signs confirm the combined qi stagnation, blood stasis, and damp heat pattern for which this formula is designed. Your authorizing veterinarian must confirm the pattern through complete clinical and TCVM assessment before initiating this formula.
Urinary Support Formula is available in concentrated liquid extract (1 oz, 4 oz, or 8 oz) and 500 mg tablets (60, 120, or 300 count). You can mix the liquid directly into food or administer it with a dropper; you can give the tablets directly or hide them in food or a soft treat for easy administration. Dosing varies by species and body weight, and your authorizing veterinarian will provide specific dosing guidance. Because this formula contains multiple herbs with combined anticoagulant effects (Dang Gui Wei, Chi Shao, Pu Huang, Mo Yao, Chuan Xiong), veterinary review of all current medications is important before use in animals on anticoagulant or antiplatelet medications. This formula is contraindicated in pregnant animals (Dang Gui Wei, Zhi Yan Hu Suo, Mo Yao) and is not appropriate as a standalone formula for blood stasis secondary to blood deficiency or kidney yang deficiency. Discuss CNS-active or antidopaminergic medications with the authorizing veterinarian, given Zhi Yan Hu Suo's alkaloid content.
Because this formula addresses a combined blood stasis and chronic damp heat pattern in the bladder, the timeline for results depends on how long the stasis and damp heat have been established. For more acute or recently developed patterns where blood stasis and damp heat have not yet become deeply chronic, you may see improvement in urinary comfort and function within 2 to 4 weeks of consistent use as qi and blood movement are restored and damp heat is cleared. For more chronic and established blood stasis patterns where the stasis has been present for months or longer, you may need more sustained use for 4 to 8 weeks or longer before meaningful improvement is seen, as chronic blood stasis is a deeper and more tenacious obstruction than acute stasis. Because this formula contains potent blood-activating herbs that are not designed for indefinite continuous use without veterinary reassessment, ongoing monitoring of the pattern's response is important. Your authorizing veterinarian will monitor tongue quality, pulse character, and clinical signs to determine when to continue, adjust, or modify the formula as the pattern resolves.
Three key clinical scenarios recommend combining Urinary Support Formula with another formula. First, when blood stasis is secondary to blood deficiency (the blood stasis has arisen because insufficient blood volume allows blood to stagnate rather than from primary obstruction), Urinary Support Formula should be paired with Liver Support Formula to provide the blood-nourishing support that prevents the formula's strong blood-moving herbs from further depleting already-deficient blood. Second, when the pattern involves kidney yang deficiency driving lower-burner blood stasis and cold accumulation (cold limbs, pale tongue, slow-deep pulse, cold lower abdomen), Dispel Stasis in the Lower Palace (Shao Fu Zhu Yu Tang) is typically the more appropriate primary formula, as it includes warming yang herbs that address the cold root cause - your authorizing veterinarian will guide this differentiation. Third, for animals with particularly strong and concurrent signs of both blood stasis and damp heat, pairing Urinary Support Formula with Four Marvels (Si Miao San) enhances the damp heat-clearing component of the combined treatment strategy. Your authorizing veterinarian will determine the appropriate pairing based on a complete TCVM pattern assessment, including tongue, pulse, and clinical signs.
Does this help with cats who are prone to crystals and struvite stones?
Thanks for your question!
Yes, it can help prevent stones.
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