Diazepam tablets have no significant adverse effects in the short term when taken one tablet per night, but if taken for a long period of time (more than 8 weeks) may cause side effects such as poor mental status and drug addiction. 1. Poor mental state; Diazepam is a kind of stabilizing drug, patients are prone to fatigue, drowsiness and other symptoms after taking the drug, the mental state is not very good. 2. Drug addiction; long-term use of the drug may produce dependence on the drug, if suddenly stop taking the drug, the patient will feel dizzy, and have anxiety, mania and tremor performance, and even cause convulsions and convulsions. Diazepam tablets are commonly used in the treatment of anxiety disorders, sedative hypnotic effect, fast absorption and more complete, but due to the long half-life of this drug, long-term use of the body to a certain extent. The specific dosage is decided by the doctor according to the patient’s specific situation, the application of drugs need to strictly follow the doctor’s instructions, feel uncomfortable in the process of taking medication, should immediately stop the drug to consult a doctor. In order to avoid adverse reactions caused by the wrong dosage of the drug.