A type of drug that causes a decrease in brain activity. Barbiturates may be used to treat insomnia, seizures, and convulsions, and to relieve anxiety and tension before surgery. A barbiturate is a ty [..]

1928 (morphine barbiturate is from 1918), from German, coined 1863 by chemist Adolf von Baeyer (1835-1917) from Barbitursäure "barbituric acid," itself coined by Baeyer, perhaps from woman&# [..]

A type of CNS depressant prescribed to promote sleep (usually in surgical procedures) or as an anticonvulsant.

A group of drugs that reduce the activity of the central nervous system. They were used as sedatives or tranquillisers but have been replaced in clinical use now as they were found to be addictive.

A drug with sedative and hypnotic effects. Barbiturates have been used as sedatives and anesthetics, and they have been used to treat the convulsions associated with epilepsy.

A powerful sedative anxiolytic derived from barbituric acid, with dangerous addiction and overdose potential.

(n) organic compound having powerful soporific effect; overdose can be fatal

One of a group of central nervous system depressants that chemically are substituted derivatives of barbituric acid; examples are amobarbital, pento- barbital, phenobarbital, and secobarbital. They are used as antiepileptics, anaesthetics, sedatives, hypnotics, and less commonly-as anxiolytics or anti-anxiety drugs (see

A drug used to treat insomnia, seizures, and convulsions, and to relieve anxiety and tension before surgery. It belongs to the family of drugs called central nervous system (CNS) depressants.

(organic compound) Any salt or ester of barbituric acid. (pharmacology) Any of derivatives of barbituric acid that act as depressants of the central nervous system and are used as sedatives or hyp [..]

a salt or derivative of barbituric acid used medicinally as a sedative, sleeping pill, or anticonvulsant; and among street drugs used as a "downer."