Drive Out Stasis addresses a type of Bi presentation that typically follows long-standing Wind Cold Damp stagnation that has impeded the circulation of Qi and, more importantly, Blood. In such instances, stagnation of Qi, Cold or Damp cause more and more Blood to stagnate and congeal. The more the old Blood remains, the more discomfort and Heat gets created. The classical indications for this formula are for generalized stagnation lodged in the joints, channels and collaterals. The broad nature of the indications points to the versatility of the formula. Drive Out Stasis moves and breaks up stagnation, or stasis, of Blood lodged in the channels and collaterals by strongly invigorating Blood, moving the Qi, expelling Wind, and opening the channels and collaterals. White peony root tonifies Liver Blood, nourishes Liver and Spleen Yin, reduces stagnation, and calms and curbs Liver Yang rising from either constrained Liver Qi or disharmony between the Liver and Spleen. Dong quai root and Sichuan lovage rhizome, two herbs that are frequentlypaired together, support and encourage the movement of Blood. Dry fried peeled Peach seed and Carthamus flower circulate and penetrate congealed Blood. Cyathula root and Myrrh resin invigorate Blood, dispel Blood stagnation, break up stasis, expel Wind and drain Dampness. Prepared Cyperus rhizome promotes the flow of Qi in the Liver and Stomach channel and alleviates stagnation. The neutral quality of this herb and its ability tospread and harmonize is especially important in this formula. Flying squirrel feces, found in the original formula to disperse Blood stasis and alleviate discomfort and stagnation, has been replaced by a combination of prepared Corydalis yanhusuo tuber for its ability to invigorate Blood, promote the movement of Qi and stop stagnation of almost any kind affecting the chest, abdomen or limbs, and by Turmeric rhizome to invigorate Blood, promote the movement of Qi, alleviate stagnation and expel Wind. Earthworm, found in the original formula to drain heat, extinguish Wind and unblock the collaterals, has been replaced by Siler root to expel Wind. Large-leaf gentian root dispels Wind Dampness, soothes the sinews and collaterals, and addresses Wind Damp obstruction and cramping, especially in the extremities. Large-leaf gentian root also combines with Notopterygium root and rhizome to address Wind Cold Damp obstruction that gets lodged in the channels. These three herbs form a strong combination to address Blood stagnation and Wind accumulation in the channels. Chinese licorice root and rhizome tonifies the Spleen, augments the Qi, moderates occasional spasms, alleviates stagnation, and harmonizes the others herbs in the formula. Drive Out Stasis can be combined with any formula to provide Blood invigoration, or when other Blood invigorating formulas are not sufficiently moving the Qi or Blood. ORIGINS AND DEVELOPMENTDrive Out Blood Stasis Decoction (Shen Tong Zhu Yu Tang).
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