Valium tablets are the trade name of the chemical name diazepam, which belongs to the sleeping drugs. Diazepam belongs to the long-acting benzodiazepine sedative-hypnotic drugs, its role is mainly related to the drug to enhance the function of the central inhibitory neurotransmitter γ-aminobutyric acid, but also may be closely related to the role of the drug in the γ-amino acid receptor in different parts. Benzodiazepines can be divided into three categories: long-acting class such as diazepam, medium-acting class such as lorazepam, and short-acting class such as triazolam. The drug is less toxic and has a wider safety range, with the most common adverse effects being drowsiness, dizziness, fatigue and memory loss. Ataxia is occasionally seen at high doses. The drug is contraindicated for use in pregnant women, women during pregnancy and newborns. The initial dose of sleeping pills should be small, to avoid long-term large-scale use and addiction, such as long-term use should be gradually reduced, and should not be abruptly stopped. If insomnia occurs, you need to go to the hospital for a clear diagnosis, under the guidance of the doctor for safe and reasonable medication.