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Recommended by holistic veterinarians, Jing Tang Wei Ling San is a Traditional Chinese Veterinary Medicine (TCVM) herbal formula that tonifies Spleen Qi, dries Damp, and stops diarrhea to support gastrointestinal health in dogs, cats, and horses. A combination of the classical Ping Wei San and Wu Ling San, this ten-herb formula addresses both the root and branch of Spleen Qi deficiency with Damp accumulation, simultaneously strengthening the Spleen's transforming function and draining the pathological Dampness that causes diarrhea and digestive upset. Available in concentrated powder and capsules. 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
Active ingredients: Bai Zhu (Atractylodes macrocephala), White atractylodes rhizome; Cang Zhu (Atractylodes lancea), Atractylodes rhizome; Chen Pi (Citrus reticulata), Tangerine peel; Da Zao (Ziziphus jujuba), Jujube fruit; Fu Ling (Poria cocos), Poria mushroom; Gan Jiang (Zingiber officinale, dried), Dried ginger rhizome; Gui Zhi (Cinnamomum cassia), Cinnamon twig; Hou Po (Magnolia officinalis), Magnolia bark; Ze Xie (Alisma orientalis), Water plantain rhizome; Zhu Ling (Polyporus umbellatus), Polyporus mushroom.
Inactive ingredients: Bovine gelatin (capsule format only). Powder formats contain no inactive ingredients.
VETERINARY AUTHORIZATION REQUIRED: Submit Your Authorization Request or Request a TCVM Telemedicine Consultation
Wei Ling San combines the Spleen-strengthening and Damp-drying herbs of Ping Wei San with the Damp-draining and fluid-metabolizing herbs of Wu Ling San to address both the root Spleen Qi deficiency and the Damp accumulation causing diarrhea:
Wei Ling San contains Damp-drying and Spleen-tonifying herbs (Bai Zhu, Cang Zhu, Hou Po) alongside Damp-draining and fluid-metabolizing herbs (Ze Xie, Zhu Ling, Fu Ling) and warming agents (Gui Zhi, Gan Jiang) that may interact with certain medications. Pets 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 diuretics, gastrointestinal medications, anticoagulants or antiplatelets, and pets managing multiple concurrent prescriptions. Your veterinarian can determine appropriateness based on your pet's condition, current medications, and laboratory results.
VETERINARY AUTHORIZATION REQUIRED: Submit Your Authorization Request or Request a TCVM Telemedicine Consultation
Wei Ling San is most commonly recommended for dogs, cats, and horses with a TCVM pattern of Spleen Qi deficiency with Damp accumulation manifesting as chronic or recurrent diarrhea, loose stools, or digestive upset. Holistic veterinarians often prescribe it when the underlying pattern involves a weakened Spleen failing to transform and transport fluids, leading to Damp accumulation in the gastrointestinal tract. No contraindications are listed for this formula.
Dosing varies by species and body weight; your authorizing veterinarian will provide specific guidance. General guidelines are 0.5g per 10 to 20 lbs of body weight twice daily for dogs and cats, administered as powder mixed into food or as capsules. For horses, the standard dose is 10 to 20g twice daily as a top dressing on feed. The 600g powder jar includes a double-sided scoop; the large scoop holds approximately 7g, and the small scoop holds approximately 2g. Use as needed for up to 3 months. Stop administration immediately if the patient develops diarrhea or other unusual signs.
Response time varies by individual, the severity and chronicity of the Spleen Qi deficiency and Damp pattern, and the format used. Many pet owners begin to notice improvement in stool consistency, digestive comfort, and appetite within 1 to 3 weeks of consistent use. You may use the formula as needed for up to 3 months. Regular follow-up with your holistic veterinarian is recommended to monitor progress and adjust dosing as needed.
Wei Ling San is sometimes used alongside other TCVM formulas as part of a comprehensive digestive support protocol, but your authorizing veterinarian should always guide combination use. If your pet is on prescription medications, particularly diuretics, gastrointestinal medications, or anticoagulants, your veterinarian will evaluate whether Wei Ling San is appropriate based on your pet's full health picture and current treatment plan. Stop use immediately if your pet develops diarrhea or other unusual signs.
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