a sedative that depresses activity of the central nervous system and reduces anxiety and induces sleep

a barbiturate with sedative and hypnotic effects; used to relieve insomnia and as an anticonvulsant

a barbiturate used as a hypnotic

a long-acting crystalline barbiturate (trade name Mebaral) used as a sedative and as an anticonvulsant in the treatment of epilepsy

a barbiturate (trade name Nembutal) used as a sedative and hypnotic and antispasmodic

barbiturate that is a white odorless slightly bitter powder (trade name Seconal) used as a sodium salt for sedation and to treat convulsions