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Herbsmith Rx Yu Nu Jian San is a classical Chinese herbal formula recommended by holistic veterinarians to support stomach health and yin nourishment in dogs, cats, and horses. Based on the traditional formula Yu Nu Jian (also known as Jade Woman Decoction), it drains heat from the stomach, clears deficiency fire, and nourishes the yin. It is well suited for pets presenting with stomach heat and yin deficiency signs such as excessive thirst, dry mouth, bleeding gums, tooth pain, or restlessness with heat. 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: Shi Gao (Gypsum Fibrosum), Shu Di Huang (Rehmanniae Radix Preparata), Zhi Mu (Anemarrhenae Rhizoma), Mai Men Dong (Ophiopogonis Radix), Niu Xi (Achyranthis Radix)
Inactive Ingredient: Flaxseed
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Each herb in Yu Nu Jian San contributes a targeted action to clear stomach heat and nourish the yin simultaneously:
Yu Nu Jian San contains heat-clearing herbs (Shi Gao, Zhi Mu) and yin-nourishing tonics (Shu Di Huang, Mai Men Dong) alongside the blood-invigorating herb Niu Xi. 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 anticoagulant or antiplatelet medications, diuretics, anti-inflammatory or immunosuppressive drugs, and pets managing multiple concurrent prescriptions. 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, Yu Nu Jian San is indicated for stomach heat with yin deficiency patterns presenting as excessive thirst, dry mouth, inflamed or bleeding gums, tooth pain, restlessness with heat, and a tendency toward heat-related discomfort in the head and face. It is a good alternative to Jade Woman Decoction and is appropriate for pets with a chronic or constitutional stomach heat pattern rather than acute excess heat from an external pathogen.
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.
Response time varies depending on the severity and chronicity of the stomach heat and yin deficiency pattern. Some pets show improvement in thirst, oral comfort, and restlessness within 2 to 4 weeks of consistent use. Chronic or deeply rooted patterns may require a longer course of treatment, and your veterinarian may recommend periodic reassessment to adjust the formula or dosing as your pet responds.
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. If your pet is on conventional medications, particularly anti-inflammatory drugs, anticoagulants, or diuretics, veterinary oversight is especially important to monitor for any interactions and ensure the treatment plan is appropriate for your pet's overall health status.
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