Brain tonic and tranquilizer tablets can not be taken for a long time, brain tonic and tranquilizer tablets are mainly used to tonify the liver and kidney, nourish the blood and tranquilize the spirit, mainly used for dizziness and dizziness caused by insufficiency of the liver and kidneys, insomnia, panic attacks, dreamy, memory loss, etc., each time to take 3-4 tablets orally 3 times / day, the course of treatment is not recommended to be more than 2 weeks. Brain tonic and tranquillizer tablets is a kind of proprietary Chinese medicine, which has a wide range of drug ingredients, and the specific adverse drug reactions are not given a clear statement on the instruction manual. But this can not be based on proprietary Chinese medicines have no side effects, the side effects of proprietary Chinese medicines are mainly manifested in a long period of time and large doses of medication, mainly liver and kidney function damage, such as aminotransferase elevation, bilirubin elevation, blood uric acid elevation or blood creatinine elevation and other manifestations. Large doses can cause gastrointestinal irritation, such as nausea, vomiting, loss of appetite.