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Herbsmith Rx Suan Zao Ren Tang is a classical Chinese herbal formula recommended by holistic veterinarians to nourish the blood, calm the spirit, and support restful behavior in dogs, cats, and horses. Comparable to Sour Jujube Powder, Ziziphus Decoction Formula, Zizyphus Sleep Formula, and Ziziphus Formula, it nourishes the blood, calms the spirit, clears heat, and eliminates irritability. Well suited for pets presenting with liver blood vacuity and vacuity heat vexation, with signs such as difficulty settling, restlessness, disturbed sleep, night wakefulness, irritability, and a general inability to relax arising from liver blood deficiency failing to nourish and anchor the heart shen, with deficiency heat rising to further agitate the spirit. 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: Suan Zao Ren (Semen Zizyphi Spinosae), Fu Ling (Sclerotium Poriae Cocos), Zhi Mu (Radix Anemarrhenae Asphodeloidis), Chuan Xiong (Radix Ligustici Chuanxiong), Gan Cao (Radix Glycyrrhizae Uralensis)
Inactive Ingredient: Flaxseed
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Suan Zao Ren Tang is a five-herb formula that addresses liver blood vacuity with vacuity heat vexation through a focused combination of a principal blood-nourishing shen calmer, a heat-clearing yin nourisher, a spirit-calming spleen tonic, a qi-moving blood invigorator, and a harmonizing middle burner tonic:
Suan Zao Ren Tang contains blood-nourishing, heat-clearing, and spirit-calming herbs including Suan Zao Ren, Zhi Mu, and Fu Ling, which have mild sedative, yin-nourishing, and blood sugar-influencing properties. Pets currently on sedative, anxiolytic, or hypoglycemic medications should use this formula under veterinary supervision, as Suan Zao Ren's sedative action and Zhi Mu's blood sugar-lowering potential may have additive effects with certain pharmaceutical agents, and herb-drug interaction research in dogs, cats, and horses remains limited.
Medication categories warranting extra caution include sedative or anxiolytic medications, anticonvulsant medications, hypoglycemic or insulin therapies, and any medications where changes in sedation level or blood glucose could affect therapeutic monitoring. Your authorizing veterinarian can determine appropriateness based on your animal's condition, current medications, and laboratory results.
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In Traditional Chinese Veterinary Medicine, Suan Zao Ren Tang is indicated for liver blood vacuity with vacuity heat vexation, presenting as difficulty settling, restlessness, disturbed sleep, night wakefulness, irritability, and agitation arising from liver blood deficiency failing to nourish and anchor the heart shen, with deficiency heat rising to further agitate the spirit. Comparable to Sour Jujube Powder, Ziziphus Decoction Formula, Zizyphus Sleep Formula, and Ziziphus Formula, it is one of the most important classical TCVM formulas for shen disturbance arising from blood deficiency with heat, and is appropriate for pets whose behavioral presentations reflect an underlying blood deficiency and deficiency heat pattern rather than an excess or cold pattern.
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 restlessness, irritability, and nighttime settling within 2 to 4 weeks of consistent use as the blood is nourished and the deficiency heat is cleared. The underlying liver blood deficiency that is the root cause of the pattern is a chronic deficiency condition, and a longer course of treatment of 8 to 12 weeks or more is typically needed to adequately nourish the blood and maintain the improvement in spirit calming. Your veterinarian may recommend periodic reassessment to evaluate the pattern's response and adjust the treatment plan as the liver blood and shen gradually stabilize.
Suan Zao Ren Tang is specifically indicated for shen disturbance arising from liver blood vacuity with vacuity heat, where the restlessness, irritability, and difficulty sleeping are accompanied by signs of blood deficiency and a mild heat presentation. It differs from Tian Wang Bu Xin Wan, which addresses heart blood and kidney yin vacuity with more pronounced deficiency fire, and from An Shen Bu Xin Wan, which addresses a broader heart blood and kidney yin pattern. Your authorizing veterinarian will determine which shen-calming formula best matches your animal's full TCVM pattern diagnosis based on the presenting signs, the underlying constitution, and the degree of deficiency and heat involved.
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