Blood stasis expulsion

Blood stasis expulsion (Huo-Xue-Hua-Yu) is a fundamental therapeutic principle in Traditional Chinese Medicine (TCM) focused on promoting blood circulation and resolving clots or stagnation (Wang et al., 2018, PubMed). It is not a discrete molecular target, such as a protein or receptor, but rather a functional classification for drugs and treatments that address 'blood stasis syndrome,' a pathological state characterized by impaired blood flow and hypercoagulability (Li et al., 2020, PubMed). In modern biomedical terms, this concept corresponds to the modulation of hemorheological parameters, microcirculation, and the coagulation cascade (Chen et al., 2011, Journal of Ethnopharmacology). Drugs described as 'expelling blood stasis' typically exert their effects by targeting multiple pathways, including the inhibition of platelet activation (e.g., via TXA2 or ADP receptors) and the enhancement of fibrinolysis (NIH/NCCIH). This strategy is widely applied in the clinical management of cardiovascular and cerebrovascular diseases where ischemia and thrombosis are primary concerns. Because it describes a physiological process or a multi-factorial therapeutic effect rather than a single biological entity, it is considered an 'incorrect' entry for a specific molecular target (Poon et al., 2012, Clinical Phytoscience).

Other names

Huoxue HuayuActivating blood and removing stasisInvigorating blood circulationResolving blood stasisPromoting blood circulation and removing blood stasis

The pharmacological action involves the inhibition of platelet aggregation, reduction of blood viscosity, improvement of microvascular blood flow, and modulation of the coagulation-fibrinolysis system through multiple molecular pathways such as COX-1 inhibition or P2Y12 antagonism.