Jing Tang Si Wu Tang (Four Substances Decoction) is a Traditional Chinese Veterinary Medicine (TCVM) herbal formula formulated to nourish Blood and regulate Blood to support vitality, coat health, and musculoskeletal comfort. Recommended by holistic veterinarians for dogs, cats, and horses, this foundational classical formula addresses Blood deficiency patterns including dryness, poor coat quality, muscular discomfort, and reduced vitality. Available in concentrated powder, concentrated capsules, and teapills. Dosing varies by species and body weight; your authorizing veterinarian will provide specific guidance. Note: Avoid in patients with Qi deficiency or Damp stagnation patterns.
VETERINARY AUTHORIZATION REQUIRED: Submit Your Authorization Request or Request a TCVM Telemedicine Consultation
What It Supports
- Blood nourishment: Replenishes Blood deficiency to support overall vitality, coat health, and tissue nourishment in dogs, cats, and horses
- Blood regulation: Promotes smooth Blood circulation and addresses stagnation patterns associated with Blood deficiency
- Musculoskeletal comfort: Supports pets experiencing discomfort or stiffness rooted in Blood deficiency failing to nourish the tendons and muscles
- Coat and skin health: Addresses the root cause of dryness and poor coat quality associated with Blood deficiency
- General vitality: Helps restore internal balance and overall wellness in pets with Blood deficiency patterns
TCVM Principles
- Primary action: Nourishes Blood and regulates Blood to restore vitality and support healthy tissue nourishment
- Important note: Avoid in patients with Qi deficiency or stagnation of Damp
- Classical antecedent: Si Wu Tang from Tai Ping Hui Min He Ji Ju Fang (Imperial Grace Formulary of the Tai Ping Era), written by Chen Shi-Wen et al. in 1080
Available Forms
- 90g Concentrated Powder: Highly concentrated granule format; mix into food for easy daily administration. Comes with a double-sided scoop. One 90g bottle lasts approximately 2 weeks
- 0.5g Concentrated Capsules (100 ct): Pre-measured capsule format for precise, convenient dosing
- Teapills (200 ct): Traditional small pill format; can be hidden in food or a soft treat for easy administration
Ingredients
Bai Shao Yao (Paeonia lactiflora, white), Chuan Xiong (Ligusticum chuanxiong), Dang Gui (Angelica sinensis), Shu Di Huang (Rehmannia glutinosa, prepared)
Inactive ingredients vary by format and may include: gluten-free maltodextrin, bovine gelatin, activated carbon, botanical wax, or talcum.
VETERINARY AUTHORIZATION REQUIRED: Submit Your Authorization Request or Request a TCVM Telemedicine Consultation
Active Ingredient TCVM Actions
Each herb in Si Wu Tang is selected for its specific role within the TCVM framework. Together, their combined actions nourish and invigorate Blood, moisten dryness, and support smooth Blood circulation throughout the body.
- Bai Shao Yao (Paeonia lactiflora, white) - White Peony Root: Nourishes Blood, softens the Liver, and calms Liver Yang to support smooth Blood flow and muscular comfort; one of the four core Si Wu Tang herbs
- Chuan Xiong (Ligusticum chuanxiong) - Sichuan Lovage Root / Chuan Xiong Rhizome: Invigorates Blood and moves Qi; prevents stagnation and ensures the nourishing herbs circulate effectively; one of the four core Si Wu Tang herbs
- Dang Gui (Angelica sinensis) - Dong Quai / Chinese Angelica Root: Nourishes and invigorates Blood, promotes circulation, and moistens dryness associated with Blood deficiency; one of the four core Si Wu Tang herbs
- Shu Di Huang (Rehmannia glutinosa, prepared) - Prepared Rehmannia Root: The chief herb; strongly nourishes Blood and replenishes Yin, providing the foundational substance for Blood production; one of the four core Si Wu Tang herbs
Potential Drug Interactions
Si Wu Tang contains Blood-nourishing and Blood-moving herbs (Dang Gui, Chuan Xiong, Bai Shao Yao) with known cardiovascular and hormonal activity. Because herb-drug interaction research in dogs and cats is limited, pets taking prescription medications should use this formula under veterinary supervision.
Extra caution may be appropriate for pets receiving anticoagulant or antiplatelet medications, hormone-modulating drugs, immunosuppressive medications, or multiple prescription medications. Your veterinarian can determine whether Si Wu Tang is appropriate based on your pet's condition, medications, and laboratory results.
VETERINARY AUTHORIZATION REQUIRED: Submit Your Authorization Request or Request a TCVM Telemedicine Consultation
Frequently Asked Questions
What is Si Wu Tang used for in TCVM?
In Traditional Chinese Veterinary Medicine, Si Wu Tang is the foundational formula for Blood deficiency patterns. Holistic veterinarians commonly recommend it for dogs, cats, and horses showing signs of Blood deficiency such as dryness, poor coat quality, pale mucous membranes, muscular weakness or discomfort, and reduced overall vitality. Note that this formula is not appropriate for pets with Qi deficiency or Damp stagnation patterns; your veterinarian will confirm whether it is the right fit for your pet.
How is Si Wu Tang administered?
Si Wu Tang is available as a concentrated powder (90g) that can be mixed directly into food, as concentrated capsules (0.5g, 100 ct) that can be given whole or opened and mixed into food, or as teapills (200 ct) that can be hidden in food or a soft treat. Dosing varies by species and body weight; your authorizing veterinarian will provide specific dosing guidance for your pet.
How long does it take to see results?
Results vary by individual and condition. Many pets begin to notice improvements in coat quality, energy, and comfort within 3 to 6 weeks of consistent use. For chronic or long-standing Blood deficiency conditions, you may need several months of consistent use before evaluating results. Your veterinarian can help set appropriate expectations based on your pet's TCVM diagnosis.
Can Si Wu Tang be combined with other medications or supplements?
Always consult your veterinarian before combining Si Wu Tang with other medications or supplements. Si Wu Tang is often used as a base formula in TCVM and is sometimes combined with other formulas to address more complex patterns, but your authorizing veterinarian should always guide combination use. Key interactions to discuss include anticoagulants, hormone-modulating drugs, and immunosuppressants. See the Potential Drug Interactions section above for details.