Si Wu Tang Patent

Si Wu Tang works through multiple synergistic mechanisms to nourish and invigorate blood. The formula contains active compounds including ligustilide and ferulic acid from Angelica sinensis, paeoniflorin from white peony root, and catalpol from prepared Rehmannia. These compounds promote hematopoiesis (blood cell production), improve microcirculation, and regulate uterine blood flow. In Traditional Chinese Medicine theory, the formula tonifies blood while promoting its circulation, addressing both deficiency and stagnation simultaneously. Evidence level: C (limited clinical trials supporting traditional use).

Si Wu Tang may interact with anticoagulant and antiplatelet medications. Components such as ferulic acid and ligustilide demonstrate mild anticoagulant properties that could potentiate the effects of blood-thinning medications including warfarin, aspirin, clopidogrel, and other anticoagulants. This combination may increase bleeding risk. The formula may also affect cytochrome P450 enzyme activity, potentially altering metabolism of certain pharmaceutical drugs. Patients taking prescription medications should consult a qualified healthcare provider before adding Si Wu Tang. Evidence level: C.

The standard adult dosage for Si Wu Tang patent tablets is 4-6 tablets taken three times daily, typically with warm water. Tablets should generally be taken between meals or as directed by the product label. For traditional decoction form, a qualified TCM practitioner determines specific herb ratios and preparation based on individual diagnosis. Dosage may vary by manufacturer and concentration. Always follow product-specific instructions or seek guidance from a qualified practitioner. Evidence level: Traditional.

Si Wu Tang is contraindicated during pregnancy and should be avoided. The formula contains blood-invigorating herbs, particularly Angelica sinensis (Dang Gui), which can stimulate uterine contractions and potentially cause miscarriage. The blood-moving properties that make it effective for menstrual conditions pose significant risks during pregnancy. Women who are pregnant, attempting to conceive, or breastfeeding should not use this formula without explicit guidance from a qualified healthcare provider. Evidence level: Traditional/Expert consensus.

Si Wu Tang is considered the most important blood-nourishing formula in Traditional Chinese Medicine for women's health. It is primarily used to address blood deficiency patterns manifesting as menstrual irregularities, anemia, pale or dull complexion, fatigue, dizziness, and scanty menstrual flow. The formula helps build and nourish blood, regulate menstruation, and relieve symptoms like amenorrhea, dysmenorrhea, or post-menstrual fatigue. It serves as a foundational formula often modified for individual presentations. Evidence level: C (traditional use with limited clinical trials).

Si Wu Tang is generally well-tolerated when used appropriately, but some individuals may experience gastrointestinal side effects including loose stools, bloating, or mild stomach discomfort. These effects typically result from the moistening, cloying nature of the blood-nourishing herbs. The formula is contraindicated in cases of acute infections, existing diarrhea, or digestive weakness with dampness. Discontinue use if significant digestive symptoms develop and consult a healthcare provider. Evidence level: Traditional.