barbiturates

A class of chemicals derived from barbituric acid or thiobarbituric acid. Many of these are medically important as sedatives and hypnotics (sedatives, barbiturate), as anaesthetics, or as anticonvulsants. ... (12 Dec 1998) ...
Found on http://www.encyclo.co.uk/local/20973

Barbiturates

A class of drugs used in medicine as hypnotic agents to promote sleep or sedation. Some are also useful in the control of epilepsy. All are central nervous system depressants and are subject to abuse. Depending upon their potency they are classified as Schedule I or Schedule II drugs.
Found on http://www.translationdirectory.com/glossaries/glossary046.htm

Barbiturates

a group of sedatives that reduce activity in the brain; are habit-forming and are possibly fatal when taken with alcohol
Found on http://www.medichecks.com/glossary.cfm?ltr=B

Barbiturates

Drugs that act as central nervous system (CNS) depressants. They produce a wide spectrum of effects from mild sedation to anaesthesia. Some barbiturates are used to treat convulsions.
Found on http://thewellnessshop.co.uk/healthandwellbeing/glossary.html
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