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Herbsmith Rx Xiao Huang San is a classical Chinese herbal formula recommended by holistic veterinarians to support skin health, clear heat, and resolve urticaria in dogs, cats, and horses. Based on the traditional formula Xiao Huang San (also known as Dissipating Huang Pattern Powder and Lung Wind Huang), it disperses heat and resolves urticaria. It is well suited for pets presenting with heat and toxicity patterns affecting the skin, including hives, raised wheals, generalized skin flushing, and itching with a warm, red, or inflamed quality arising from wind-heat or damp-heat in the skin and lung. 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.
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For Dogs (Canine Blend Powder):
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: Zhi Mu (Rhizoma Anemarrhenae), Chuan Bei Mu (Bulbus Fritillariae Cirrhosae), Huang Lian (Rhizoma Coptidis), Zhi Zi (Fructus Gardeniae Jasminoidis), Huang Qin (Radix Scutellariae Baicalensis), Lian Qiao (Fructus Forsythiae Suspensae), Da Huang (Radix et Rhizoma Rhei), Mang Xiao (Natrii Sulfas), Huang Yao Zi (Bulbus Dioscoreae Bulbiferae), Yu Jin (Radix Curcumae), Zhi Gan Cao (Honey-fried Radix Glycyrrhizae Uralensis)
Inactive Ingredient: Flaxseed
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Xiao Huang San combines 11 herbs that clear heat from multiple levels simultaneously, addressing heat in the lung, blood, skin, and bowel to resolve urticaria and inflammatory skin eruptions from within:
Xiao Huang San contains potent heat-clearing and purgative herbs including Da Huang, Mang Xiao, Huang Lian, and Huang Yao Zi, which have significant bowel-stimulating, anticoagulant-adjacent, and hepatic-metabolizing properties. Pets currently on prescription medications should use this formula under veterinary supervision, as herb-drug interaction research in dogs and cats remains limited.
Medication categories warranting extra caution include laxatives or bowel-stimulating medications, anticoagulant or antiplatelet medications, cardiac medications, immunosuppressive drugs, and pets with pre-existing liver or kidney conditions, given Huang Yao Zi's known hepatic considerations. 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, Xiao Huang San is indicated for wind-heat and damp-heat patterns manifesting on the skin, presenting as hives, raised wheals, urticaria, generalized skin flushing, and itching with a warm, red, or inflamed quality. It is a good alternative to Dissipating Huang Pattern Powder and Lung Wind Huang and is appropriate for pets whose skin eruptions have a clear heat component, particularly when signs include restlessness, thirst, or a rapid, full pulse alongside the skin presentation.
Mix the powder directly into food or grain at the dose recommended for your pet's species and body weight. Both dogs and cats use the Canine Blend; horses use the Equine/Horse Blend. 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 dose and schedule for your individual pet.
As a formula designed to address acute and subacute heat-driven skin reactions, Xiao Huang San may produce improvement in urticaria, flushing, and itching relatively quickly when the pattern is well matched. Many pets show visible improvement within 1 to 3 weeks of consistent use. If the skin eruptions are chronic or recurrent, or have a more complex underlying pattern, your veterinarian may recommend adjusting the formula or combining it with additional support based on your pet's current presentation.
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 Da Huang and Mang Xiao, which are strong purgative herbs, and Huang Yao Zi, which has hepatic considerations with prolonged use, veterinary oversight is especially important if your pet is on conventional medications or has pre-existing liver or kidney conditions, to ensure the treatment plan is appropriate for your pet's overall health status.
Which blend so l give for a cat ?
Hi, thank you for your question!
A TCVM vet would need to help you choose the right formula or combination of herbal formulas based on your cat's varied symptoms and the formula that will be most effective for your cat's health situation and case, also to help fully resolve the issue properly through TCVM.
Vets usually choose a dose based on individual characteristics, constitution, and symptoms. Dosing and duration depend on the weight of the animal and its condition.
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