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Recommended by holistic veterinarians, Herbsmith Rx Jia Wei Si Wu San supports traditional Blood nourishment, Dampness management, and limb strength in dogs, cats, and horses with a veterinarian-confirmed combined deficiency and Damp-Heat pattern. Also described as Augmented Four Substance Powder, this thirteen-herb formula retains the Si Wu Tang foundation of Dang Gui, Shu Di Huang, Bai Shao, and Chuan Xiong, with nine additional ingredients that support Qi and Yin, clear Heat, manage Dampness, and support lower-limb direction. Traditional pattern features may include limb weakness, heaviness, stiffness, a pale or slightly red tongue with a greasy coating, and a thin or slippery pulse. Available as 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; your authorizing veterinarian will provide specific guidance.
VETERINARY AUTHORIZATION REQUIRED: Submit Your Authorization Request or Request a TCVM Telemedicine Consultation
What It Supports
- Blood nourishment: Dang Gui, Shu Di Huang, and Bai Shao provide the traditional nourishing foundation, balanced by Chuan Xiong's Qi and Blood movement. TCVM Blood deficiency is a pattern description, not a diagnosis of anemia.
- Qi and Yin support: Ren Shen, Mai Men Dong, and Wu Wei Zi contribute traditional Qi tonification, fluid nourishment, and consolidation alongside the Blood-supporting group.
- Dampness and Heat management: Huang Bai, Huang Lian, and Cang Zhu contribute Heat-clearing and Dampness-drying actions, while Zhi Mu clears Heat and nourishes Yin. These roles complement rather than replace the nourishing ingredients.
- Lower-limb support: Du Zhong and Niu Xi traditionally support sinews and bones, with Niu Xi providing downward direction and Blood movement. These traditional roles do not establish regeneration of damaged structures.
TCVM Principles
- Primary action: Nourish Blood, support Qi and Yin, manage Damp-Heat, and strengthen the limbs within the selected compound pattern.
- Classical antecedent: The four-herb Si Wu Tang foundation is augmented with a three-herb Qi and Yin group, a four-herb Heat and Dampness group, and a two-herb lower-limb group. Manufacturer adaptations and exact proportions require label confirmation.
- Pattern differentiation: Your veterinarian assesses both deficiency and Damp-Heat rather than selecting the formula for weakness alone. Kidney and Liver terminology here describes TCVM functions, not proof of disease in those organs.
- Contraindications: The existing listing excludes pure Blood deficiency without Damp-Heat and Cold or Yang-deficient patterns where the bitter-cold ingredients would be unsuitable. Review pregnancy or nursing status, digestion, bleeding history, and all medications before starting.
- Warning: Sudden weakness, inability to stand or bear weight, collapse, pale gums, or new loss of coordination requires prompt veterinary attention. Do not wait for an herbal response or assume weakness is simply a deficiency pattern.
Available Forms
- Powder - Canine Blend (dogs and cats): Listed in 75 g, 150 g, 500 g, 900 g, and 1200 g sizes; mix into food using the prescribed dose.
- Powder - Equine/Horse Blend (horses only): Listed in 150 g, 500 g, 900 g, and 1200 g sizes; mix into grain using horse-specific directions.
Suggested Use
- Canine Blend Powder - Dogs under 30 lbs: ½ tsp twice daily, or as directed by your veterinarian.
- Canine Blend Powder - Dogs 30-80 lbs: 1 tsp twice daily, or as directed by your veterinarian.
- Canine Blend Powder - Dogs 80-120 lbs: 1½ tsp twice daily, or as directed by your veterinarian.
- Canine Blend Powder - Dogs over 120 lbs: 2 tsp twice daily, or as directed by your veterinarian.
- Canine Blend Powder - Cats: ¼ tsp twice daily, or as directed by your veterinarian.
- Equine/Horse Blend - 1,000 lb horse, initial dose: Two tablespoons twice daily in grain, or as directed by your veterinarian. Continue the initial schedule for 20 days, or as directed by your veterinarian.
- Equine/Horse Blend - 1,000 lb horse, subsequent dose: After the initial period, two tablespoons once daily in grain, or as directed by your veterinarian.
Mix the Canine Blend into food. If a horse initially refuses the Equine/Horse Blend, introduce a small amount in grain and gradually increase until accustomed to the taste, or as directed by your veterinarian. Confirm the dog dose at the overlapping 80 lb boundary. Existing numeric doses are preserved, not independently manufacturer-verified. Continue only for the prescribed duration, or as directed by your veterinarian; the subsequent schedule does not authorize indefinite use. Veterinary authorization and medication review are required. Stop administration and contact your veterinarian for a suspected adverse reaction, worsening digestive upset, unusual bleeding, or worsening weakness.
Ingredients
Active Ingredients: Dang Gui (Radix Angelicae Sinensis) - Chinese Angelica root; Mai Men Dong (Tuber Ophiopogonis Japonici) - Ophiopogon tuber; Huang Bai (Cortex Phellodendri) - Phellodendron bark; Cang Zhu (Rhizoma Atractylodis) - Atractylodes rhizome; Shu Di Huang (Radix Rehmanniae Glutinosae Conquitae, as listed) - Prepared Rehmannia root; Bai Shao (Radix Paeoniae Lactiflorae) - White Peony root; Chuan Xiong (Radix Ligustici Chuanxiong, as listed) - Sichuan Lovage; Du Zhong (Cortex Eucommiae Ulmoidis) - Eucommia bark; Wu Wei Zi (Fructus Schisandrae Chinensis) - Schisandra fruit; Ren Shen (Radix Ginseng) - Ginseng root; Huang Lian (Rhizoma Coptidis) - Coptis rhizome; Zhi Mu (Radix Anemarrhenae Asphodeloidis, as listed) - Anemarrhena; Niu Xi (Radix Achyranthis Bidentatae) - Achyranthes root.
Inactive Ingredient: Flaxseed.
Source confirmation: The thirteen ingredient designations are preserved from the existing listing. Confirm complete botanical species, preparation details, proportions, and plant parts against the manufacturer label. Huang Bai, Cang Zhu, and Huang Lian do not establish a single species from these names alone. The unusual Shu Di Huang Latin wording and the root-versus-rhizome designations for Chuan Xiong and Zhi Mu need reconciliation rather than an assumed correction. Prepared Rehmannia is retained as named; the exact preparation is unverified.
VETERINARY AUTHORIZATION REQUIRED: Submit Your Authorization Request or Request a TCVM Telemedicine Consultation
Active Ingredient TCVM Actions
The thirteen ingredients form four complementary layers: Blood nourishment and movement, Qi and Yin support, Heat clearance and Dampness management, and lower-limb support. These describe traditional functions rather than guaranteed clinical outcomes.
- Dang Gui (Radix Angelicae Sinensis) - Chinese Angelica Root: Nourishes and moves Blood, providing nourishment alongside movement within the Si Wu Tang foundation.
- Mai Men Dong (Tuber Ophiopogonis Japonici) - Ophiopogon Tuber: Nourishes Yin and generates fluids, contributing a moistening and fluid-supporting complement to the drying and clearing ingredients.
- Huang Bai (Cortex Phellodendri) - Phellodendron Bark: Clears Heat, dries Dampness, and traditionally drains deficiency Fire. The precise species should be confirmed before assigning a species-specific common name.
- Cang Zhu (Rhizoma Atractylodis) - Atractylodes Rhizome: Dries Dampness, supports the Spleen's transforming function, and traditionally disperses Wind-Dampness. Its drying role complements the Heat-clearing group.
- Shu Di Huang (Radix Rehmanniae Glutinosae Conquitae, as listed) - Prepared Rehmannia Root: Nourishes Blood, Kidney Yin, and Essence. Its prepared designation is retained without assuming a specific processing method or verified Latin correction.
- Bai Shao (Radix Paeoniae Lactiflorae) - White Peony Root: Nourishes Blood, preserves Yin, and softens the Liver, supporting traditional sinew comfort within the nourishing foundation.
- Chuan Xiong (Radix Ligustici Chuanxiong, as listed) - Sichuan Lovage: Moves Blood and Qi, providing a moving counterbalance to the nourishing herbs. Confirm the root-versus-rhizome wording with the manufacturer.
- Du Zhong (Cortex Eucommiae Ulmoidis) - Eucommia Bark: Traditionally tonifies Liver and Kidney and strengthens sinews and bones, emphasizing lower-back and lower-limb support without implying demonstrated structural repair.
- Wu Wei Zi (Fructus Schisandrae Chinensis) - Schisandra Fruit: Consolidates Qi, nourishes Yin, and generates fluids. Its astringing role complements Ren Shen and Mai Men Dong.
- Ren Shen (Radix Ginseng) - Ginseng Root: Tonifies Qi and supports fluid generation, complementing the Blood-nourishing layer through the traditional principle that Qi supports Blood production and movement.
- Huang Lian (Rhizoma Coptidis) - Coptis Rhizome: Clears Heat, dries Dampness, and drains Fire. These traditional actions do not make the formula a substitute for antimicrobial treatment.
- Zhi Mu (Radix Anemarrhenae Asphodeloidis, as listed) - Anemarrhena: Clears Heat, nourishes Yin, and generates fluids. This distinguishes its contribution from the more directly Dampness-drying ingredients; the plant-part designation requires label confirmation.
- Niu Xi (Radix Achyranthis Bidentatae) - Achyranthes Root: Traditionally supports Liver and Kidney, strengthens sinews and bones, moves Blood, and directs downward, complementing Du Zhong's lower-limb role.
Potential Drug Interactions
Herbsmith Rx Jia Wei Si Wu San contains Ginseng, Blood-moving ingredients, nourishing herbs, bitter-cold Heat-clearing ingredients, and Schisandra. Pets taking prescription medications should use the formula under veterinary supervision because herb-drug interaction research in dogs and cats is limited. Horses taking prescriptions also require review. Traditional Blood movement or Heat clearance does not establish a measured anticoagulant or antimicrobial effect for this finished product, and constituent or human research cannot define its interaction magnitude in an individual animal. The existing exclusions for pure Blood deficiency without Damp-Heat and Cold or Yang-deficient patterns remain relevant.
Medication categories warranting extra caution include anticoagulant and antiplatelet medicines, hormonal medicines, insulin and other antidiabetic medicines, antibiotics, antifungals, anti-inflammatory medicines, immunosuppressants, stimulants, monoamine oxidase inhibitors, and medicines sensitive to metabolic interactions, particularly with multiple prescriptions. Review planned procedures and any bleeding or glucose-control concerns before use. Stop administration and contact your veterinarian for suspected adverse reactions, unusual bleeding, worsening digestive upset, or worsening weakness. Your veterinarian can determine appropriateness based on your animal's condition, current medications, and laboratory results.
VETERINARY AUTHORIZATION REQUIRED: Submit Your Authorization Request or Request a TCVM Telemedicine Consultation
Frequently Asked Questions
What pattern is Jia Wei Si Wu San used for in TCVM?
It supports a veterinarian-confirmed combination of Blood and Qi deficiency with Damp-Heat affecting the limbs. Weakness, heaviness, stiffness, tongue coating, and pulse findings contribute to pattern assessment, but weakness also requires investigation of neurological, orthopedic, metabolic, or other causes. TCVM Blood deficiency does not mean laboratory-confirmed anemia, and Kidney or Liver terminology does not independently establish disease in those organs.
How is the powder administered to dogs, cats, and horses?
Dogs and cats use the Canine Blend mixed into food. Dogs under 30 lbs receive ½ tsp twice daily, or as directed by your veterinarian. Dogs 30-80 lbs receive 1 tsp twice daily, or as directed by your veterinarian. Dogs 80-120 lbs receive 1½ tsp twice daily, or as directed by your veterinarian. Dogs over 120 lbs receive 2 tsp twice daily, or as directed by your veterinarian. Cats receive ¼ tsp twice daily, or as directed by your veterinarian. Confirm the dog dose at the overlapping 80 lb boundary.
For a 1,000 lb horse using the Equine/Horse Blend, give two tablespoons twice daily in grain, 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 initially refused, introduce a small amount in grain and gradually increase until accustomed to the taste, or as directed by your veterinarian. Continue only for the prescribed duration, or as directed by your veterinarian. Confirm the combined pattern and review medications before starting.
How are progress, safety, and duration assessed?
Your veterinarian reviews limb function, comfort, mobility, digestion, tolerance, tongue and pulse findings, and relevant examination or laboratory results. Fixed improvement or structural-recovery timelines are not promised. Continue only for the prescribed duration, or as directed by your veterinarian. The existing listing excludes pure Blood deficiency without Damp-Heat and Cold or Yang-deficient patterns. Persistent or worsening signs require reassessment rather than automatically extending the course. Sudden weakness, inability to stand, collapse, or new loss of coordination requires prompt clinical care.
How does Jia Wei Si Wu San differ from Si Wu Tang?
Si Wu Tang supplies the four-herb foundation of Dang Gui, Shu Di Huang, Bai Shao, and Chuan Xiong. This listing adds nine herbs across Qi and Yin support, Heat clearance and Dampness management, and lower-limb support. That gives the combination a different pattern emphasis, not proof that the base formula is inadequate or that the augmented version is universally better. Your veterinarian compares the actual formulation and clinical pattern before selecting or substituting a product.
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