a drug that produces sedation, hypnosis, anesthesia or sleep.

Central nervous system depressant. Some barbiturates may be used before surgery to relieve anxiety or tension. In addition, some are used as anticonvulsants.

drug within a family of depressants derived from barbituric acid and used as a sedative-hypnotic and antiepileptic medication” ( Levinthal, 293).

A class of drugs that causes sedation and relaxation. Barbiturates may be found in combination abortive medications used to treat the symptoms of headache. If used too frequently (more than a couple of days per week), they may be habit-forming.

A type of sleeping pill.

synthetic sedative

A type of central nervous system (CNS) depressant often prescribed to promote sleep.

a class of drugs (e.g., phenobarbital) that have sedative properties and depress respiratory rate, blood pressure and nervous system activity.

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.

a group of drugs, used as sedatives and tranquilizers, that depress the central nervous system and respiration, decrease blood pressure, and affect heart rate.

Barbiturates are drugs that act as central nervous system depressants, and by virtue of this they produce a wide spectrum of effects, from mild sedation to anesthesia. Some are also used as anticonvulsants.