Benzodiazepines as commonly used sedative, anti-anxiety, hypnotic drugs, mainly diazepam, lorazepam, clonazepam, alprazolam, nitrazepam, triazolam, etc., can be divided into short-acting and long-acting preparations, short-acting lorazepam, oxazepam, etc., long-acting clonazepam, alprazolam, alprazolam, etc.. These drugs are relatively fast-acting, taking the drug for about 30 minutes to have a significant effect, and for anxiety, nervousness, mental restlessness, etc. have a very good effect. There are also benzodiazepines that have a targeted therapeutic effect on certain diseases, such as nazepam, eszopiclone, clonazepam, which have a very good effect on sleep disorders, and alprazolam can also be considered for patients with depressive symptoms. If it is a panic attack, want to short-term to control the symptoms can take lorazepam, oxazepam, etc. So different situations, patients, diseases must be adjusted according to the actual situation to adjust the type and dosage of medication. The most critical thing is that benzodiazepines have very obvious side effects, such as dependence and even addiction after long-term heavy use, and cognitive impairment for elderly patients, which can impair concentration, memory, and executive function, so it is important to take medication according to medical advice.