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Herbsmith Rx Shen Ling Bai Zhu San is a classical Chinese herbal formula recommended by holistic veterinarians to augment the qi, strengthen the spleen, leech out dampness, and stop diarrhea in dogs, cats, and horses. Comparable to Ginseng, Poria, and Atractylodes Powder and Shen Ling Spleen Support, it augments the qi, strengthens the spleen, leeches out dampness, and stops diarrhea, addressing spleen and stomach vacuity with concurrent internal dampness. Built on the classical Si Jun Zi Tang qi-tonifying foundation of Ren Shen, Bai Zhu, Fu Ling, and Zhi Gan Cao, with the addition of six herbs that strengthen the spleen, resolve dampness, and stop diarrhea, making Shen Ling Bai Zhu San the formula of choice when spleen qi deficiency has generated internal dampness manifesting as loose stools, chronic diarrhea, poor appetite, fatigue, and a pale tongue with a white greasy coating. Well suited for pets and horses with chronic digestive weakness, intermittent or persistent loose stools, poor appetite, and the general signs of spleen qi deficiency with internal damp accumulation. 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.
VETERINARY AUTHORIZATION REQUIRED: Submit Your Authorization Request or Request a TCVM Telemedicine Consultation
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: Ren Shen (Radix Ginseng), Bai Zhu (Rhizoma Atractylodis Macrocephalae), Fu Ling (Sclerotium Poriae Cocos), Zhi Gan Cao (Honey-fried Radix Glycyrrhizae Uralensis), Shan Yao (Radix Dioscoreae Oppositae), Bai Bian Dou (Semen Dolichoris Lablab), Lian Zi (Semen Nelumbinis Nuciferae), Yi Yi Ren (Semen Coicis Lachryma-jobi), Sha Ren (Fructus Amomi), Jie Geng (Radix Platycodi Grandiflori)
Inactive Ingredient: Flaxseed
VETERINARY AUTHORIZATION REQUIRED: Submit Your Authorization Request or Request a TCVM Telemedicine Consultation
Shen Ling Bai Zhu San is a ten-herb formula built on the Si Jun Zi Tang spleen qi-tonifying base with the addition of six damp-resolving, stool-firming, qi-moving, and upward-guiding herbs that extend the formula's action from simple spleen qi tonification to comprehensive spleen qi tonification with dampness resolution and diarrhea stopping:
Shen Ling Bai Zhu San contains Ren Shen (ginseng), which affects platelet aggregation, blood glucose regulation, and certain hepatic enzyme pathways, making anticoagulant, antidiabetic, and hepatically metabolized pharmaceutical interactions the primary clinical concerns for this formula. Pets on anticoagulant or antiplatelet medications, antidiabetic medications, or immunosuppressive pharmaceuticals should use this formula under veterinary supervision, and herb-drug interaction research in dogs, cats, and horses remains limited.
Medication categories warranting extra caution include anticoagulant and antiplatelet medications, antidiabetic medications and insulin (where Ren Shen's blood glucose effects may be additive or counteracting), immunosuppressive medications, hepatically metabolized pharmaceuticals, and diuretic medications (where Fu Ling's damp-leeching and Yi Yi Ren's draining actions may have additive effects on fluid balance). Your authorizing veterinarian will 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
In Traditional Chinese Veterinary Medicine, Shen Ling Bai Zhu San is indicated for spleen and stomach vacuity with concurrent internal dampness, presenting with chronic loose stools or diarrhea, poor appetite, fatigue, abdominal distension, and a pale tongue with a white greasy coating reflecting the spleen qi deficiency and damp accumulation underlying the pattern. Comparable to Ginseng, Poria, and Atractylodes Powder and Shen Ling Spleen Support, it is indicated when spleen qi deficiency has generated internal dampness that is producing the loose stool and diarrhea pattern, distinguishing it from Si Jun Zi Tang, which addresses spleen qi deficiency without significant damp accumulation.
Mix the powder directly into food or grain at the dose recommended for your animal's species and body weight. 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. 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. Your authorizing veterinarian will confirm the appropriate dose and schedule for your individual animal.
Many pets show improvement in stool consistency, appetite, and energy within 3 to 6 weeks of consistent use as spleen qi is tonified, dampness is resolved, and middle jiao qi flow is restored. Because chronic spleen qi deficiency with damp accumulation is typically a longstanding pattern rather than an acute condition, a longer course of 8 to 16 weeks or more is often needed to fully restore spleen function, clear the accumulated dampness, and maintain stool consistency and digestive strength over time. Your veterinarian will reassess the pattern periodically as the formula takes effect.
Shen Ling Bai Zhu San is specifically indicated when spleen qi deficiency has generated internal dampness manifesting as chronic loose stools, diarrhea, and digestive weakness, while Si Jun Zi Tang addresses spleen qi deficiency without the significant damp accumulation component. Shen Ling Bai Zhu San's six additional herbs beyond the Si Jun Zi Tang base provide damp resolution, stool firming, middle jiao qi movement, and upward lung guidance that Si Jun Zi Tang does not provide. When the primary presentation is spleen qi deficiency with fatigue and poor appetite but without significant loose stools or damp signs, Si Jun Zi Tang may be more appropriate; when loose stools, diarrhea, or a greasy tongue coating indicate damp accumulation alongside the spleen qi deficiency, Shen Ling Bai Zhu San is typically the formula of choice. Your authorizing veterinarian will determine which formula best matches your animal's specific TCVM pattern.
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