Tianma Hook Teng Drink is used for calming the liver and extinguishing wind, clearing heat and activating blood circulation, and tonifying the liver and kidney. It is indicated for symptoms of hyperactivity of Liver-Yang and upward disturbance of Liver-Wind (wind-evil caused by the Liver interfering upward to the head). Symptoms include headache, dizziness, insomnia and dreaminess, or bitter mouth and red face, red tongue with yellow fur, and stringy or numberless pulse. The formula of Tianma Hookteng Drink is Tianma, Hookteng, Cassia, Gardenia, Scutellaria, Radix Scutellariae, Cortex Eucommiae and Radix et Rhizoma Polygoni Multiflori as well as Poria Zhu. Tianma Hook Teng Drink belongs to Chinese medicine prescription, which has the effect of calming the liver and quenching wind (regulating the function of the liver to get rid of internal wind), clearing heat and activating blood circulation, and can also tonify the liver and kidneys. Therefore, it can be used to treat hypertension and acute cerebrovascular diseases with symptoms of hyperactivity of liver yang and disturbances of liver wind, such as headache and dizziness, insomnia and dreaming, as well as symptoms of red tongue and yellow fur. Adverse effects, contraindications and precautions of Tianma Hook Teng Drink are not clear. It is recommended to use under the guidance of a Chinese medicine practitioner, unauthorized use of medication may result in adverse consequences.