Niuhuang Hypertension Pill is a heat-clearing agent, with the effect of clearing the heart and resolving phlegm, calming the liver and tranquilizing the mind. It is clinically used to treat dizziness, headache, insomnia, irritability caused by the fire in the heart and liver and congestion of phlegm and heat, as well as when hypertension manifests the above symptoms. The composition of the drug includes antelope horn, pearl powder, buffalo horn, artificial niuhuang, ice chips, white peony, party ginseng, astragalus, cassia seeds, Chuanxiong, scutellaria, sweet pine, peppermint and yujin. In the formula, antelope horn enters the liver meridian and has the effect of cooling the liver and quenching the wind, pearl pacifies the liver and subdues yang, clears liver fire, buffalo horn can clear heat and cool the blood, niuhuang can clear heat and detoxify the blood, quench the wind and stop spasm, white peony, party ginseng and astragalus can benefit the qi, nourish yin and increase fluid, soften the liver Radix et Rhizoma cassiae can clear liver fire and nourish kidney yin; Rhizoma Chuanxiong can move the head and eyes, dispel wind and relieve pain; Radix Scutellariae can clear heat, relieve fire and cool the blood; Radix et Rhizoma Glycyrrhiza can move qi, relieve pain and open the spleen; Peppermint can clear the head and eyes, clear the liver and relieve depression; Yu Jin can relieve depression and open the orifices, clear the heart and cool the blood.