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Herbsmith Rx Tao Hong Si Wu San is a classical Chinese herbal formula recommended by holistic veterinarians to tonify and invigorate the blood in dogs, cats, and horses. Comparable to Four Substance with Safflower and Peach Pit and Augmented Four Substances, it tonifies and invigorates the blood, addressing the concurrent pattern of blood deficiency and blood stasis. Built on the foundational Si Wu Tang (Four Substance Decoction) base with the addition of Tao Ren and Hong Hua, it is well suited for pets presenting with both blood deficiency signs such as pale gums, lusterless coat, fatigue, and weakness, and blood stasis signs such as fixed stiffness, discomfort that worsens with pressure, dark or purplish discoloration, and reproductive irregularities, arising from a concurrent deficiency and stagnation pattern where the blood is both insufficient and failing to circulate freely. Available as a concentrated powder mixed into food and as 300 mg concentrated tablets; cats and dogs use the Canine Blend powder or tablets, while horses use the Equine/Horse Blend powder. Dosing varies by species, body weight, and form, and your authorizing veterinarian will provide specific guidance.
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For Dogs (Canine Blend Powder):
For Dogs (300 mg Concentrated Tablets):
For Cats (Canine Blend Powder): ¼ tsp twice daily, or as prescribed
For Horses (Equine/Horse Blend, 1,000 lb horse): Two tablespoons twice daily for 20 days, then two tablespoons once daily in grain. If the horse initially refuses, start with a small amount mixed into grain and gradually increase until the horse is accustomed to the taste. Most horses will readily accept the herbs in their grain.
Active Ingredients: Chuan Xiong (Radix Ligustici Chuanxiong), Dang Gui (Radix Angelicae Sinensis), Chao Bai Shao (Dry-fried Radix Paeoniae Lactiflorae), Shu Di Huang (Radix Rehmanniae Glutinosae Conquitae), Tao Ren (Semen Persicae), Hong Hua (Flos Carthami Tinctorii)
Inactive Ingredient: Flaxseed
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Tao Hong Si Wu San is a six-herb formula that combines the classical Si Wu Tang (Four Substance Decoction) blood-tonifying base with Tao Ren and Hong Hua to simultaneously tonify blood deficiency and resolve blood stasis, addressing the concurrent deficiency-stasis pattern from both the insufficiency root and the stagnation manifestation:
Tao Hong Si Wu San contains potent blood-moving and stasis-resolving herbs, including Tao Ren, Hong Hua, Chuan Xiong, and Dang Gui, which significantly affect platelet aggregation, blood viscosity, and clotting function. Pets currently on anticoagulant, antiplatelet, or non-steroidal anti-inflammatory medications should use this formula under close veterinary supervision, as combining these herbs with pharmaceutical blood thinners or NSAIDs can produce additive blood-thinning effects, and herb-drug interaction research in dogs and cats remains limited. Hong Hua is contraindicated in pregnancy.
Medication categories warranting extra caution include anticoagulant or antiplatelet medications, non-steroidal anti-inflammatory drugs, cardiac medications, chemotherapy or immunosuppressive drugs, and any medications that require stable clotting function. Your authorizing veterinarian can determine appropriateness based on your pet's condition, current medications, and laboratory results.
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In Traditional Chinese Veterinary Medicine, Tao Hong Si Wu San is indicated for the concurrent pattern of blood deficiency and blood stasis, presenting with both blood deficiency signs such as pale gums, lusterless coat, fatigue, and weakness, and blood stasis signs such as fixed stiffness, discomfort worsening with pressure, dark or purplish tissue discoloration, and reproductive irregularities. Comparable to Four Substance with Safflower and Peach Pit and Augmented Four Substances, it is the classical formula for pets whose presentations require simultaneously tonifying insufficient blood and resolving stagnant blood, and is appropriate when treating only one aspect of the pattern without the other would be incomplete.
Mix the powder directly into food or grain at the dose recommended for your pet's species and body weight. Dogs and cats use the Canine Blend powder; horses use the Equine/Horse Blend powder. Concentrated 300 mg tablets are also available for dogs and are administered at the tablet dose recommended for your dog's weight. Dogs and cats receive the formula twice daily; horses receive two tablespoons twice daily for the first 20 days, then once daily for maintenance. Your authorizing veterinarian will confirm the appropriate form, dose, and schedule for your individual pet.
Because this formula addresses both blood deficiency and blood stasis simultaneously, the timeline for improvement depends on the severity and chronicity of both components of the pattern. Many pets show improvement in energy, coat quality, and stiffness within 4 to 6 weeks of consistent use as the blood is both tonified and circulated more freely. Deeper or more established patterns may require a longer course of treatment, and your veterinarian may recommend periodic reassessment to evaluate both the blood deficiency and blood stasis components and adjust the treatment plan as the pattern evolves.
Combination with complementary TCVM formulas is common in holistic veterinary practice and should be guided by your authorizing veterinarian based on your pet's full pattern diagnosis. Because this formula contains the potent blood-moving pair Tao Ren and Hong Hua alongside the blood-moving Si Wu Tang base herbs Chuan Xiong and Dang Gui, veterinary oversight is especially important if your pet is on anticoagulant medications, NSAIDs, or any medication where stable clotting function is required, to monitor for additive blood-thinning effects and ensure the combined treatment plan is safe and appropriate for your pet's overall health status.
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