oxazepam

drug

Also known as: Serax

Written by

The Information Architects of Encyclopaedia Britannica

Last updated

July 2, 2026

Quick Summary

Oxazepam is a benzodiazepine tranquilizer used to treat anxiety, tension, and agitation. Benzodiazepines work by enhancing the effect of the neurotransmitter gamma-aminobutyric acid (GABA), which reduces nerve-impulse transmissions in the brain, thereby inhibiting anxiety.12

Oxazepam was first used in 1964 and is chemically related to diazepam. While benzodiazepines are widely prescribed and have fewer side effects than older drugs like barbiturates, they can lead to tolerance and dependence with prolonged use. Common side effects include drowsiness and reduced alertness.12

Summary created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

2 Britannica Sources

Ask Britannica AI about this topic

Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.

sedative-hypnotic drug
oxazepam (Serax), and triazolam (Halcion). They are, however, intended only for short- or medium-term use, since the body does develop a tolerance to them and withdrawal symptoms (anxiety, restlessness, and so on) develop even in those who have used the drugs for only four to…
Read More
oxazepam (Serax), and triazolam (Halcion). They are, however, intended only for short- or medium-term use, since the body does develop a tolerance to them and withdrawal symptoms (anxiety, restlessness, and so on) develop even in those who have used the drugs for only four to…
Read More