Niuhuang Hypotensive Pill has certain antihypertensive effects. The drug composition includes antelope horn, pearl, buffalo horn, artificial ox horn, ice chips, white peony, as well as party ginseng, astragalus, cassia seed, Chuanxiong, scutellaria, glycyrrhiza, peppermint, and yujin. The main effects are to clear the heart and resolve phlegm, calm the liver and tranquilize the mind, which is used to treat dizziness, headache and insomnia, irritability and hypertension caused by fire in the heart and liver and congestion of phlegm and heat. The composition of the drug includes Antelope horn, which enters the liver meridian and cools the liver and quenches the wind; Pearl, which pacifies the liver and submerges the yang, can clear liver fire; Buffalo horn, which clears heat and cools the blood; Niuhuang, which clears heat and detoxifies the blood and relieves wind and spasm; White peony, Astragalus, and Radix Codonopsis, which together can benefit the qi and produce fluid, nourish the yin and increase fluid, and soften the liver and relieve tendons; Cassia seed, which clears liver fire and nourishes kidney yin; Chuanxiong, which moves the head and eyes, dispels wind and relieves pain; Scutellaria baicalensis It can clear heat and fire and cool the blood; Gangsong can move qi and relieve pain, open depression and awaken the spleen; Peppermint can clear the head and eyes, clear the liver and relieve depression; Yujin can relieve depression, open the orifices, clear the heart and cool the blood. The drugs work together to clear the heart, resolve phlegm, calm the mind and lower blood pressure.