西黄丸组方中，牛黄味苦性寒、通窍散结，为主药；麝香辛香走窜、活血散结，

In the prescription of Xihuang Pills, bezoar taste bitter cold, Tongqiao Sanjie, the main medicine; musk spicy spicy, Huoxue Sanjie, as an adjunct, supplemented with frankincense, myrrh and blood circulation, swelling and pain relief, all The prescription mainly focuses on clearing away heat and detoxifying and loosening phlegm, supplemented by drugs for promoting blood circulation and removing blood stasis, combined use of four drugs, Yiqi Fuzheng, Jiedu Sanjie

West yellow pill group, ox yellow bitter cold, common trick scattered, the main drug;

In Xihuangwan formula, Niuhuang is bitter and cold, with the main medicine of clearing the orifices and removing the knots; musk is pungent and fragrant, with the auxiliary medicine of promoting blood circulation and removing stasis, eliminating swelling and pain, with the main medicine of clearing away heat and toxin, dispersing the knots and eliminating phlegm, with the auxiliary medicine of promoting blood circulation and removing stasis, with the four drugs in combination, benefiting qi and strengthening the body, detoxifying and removing the knots<br>