1) Benzodiazepine 
<chemical> 1,3-dihydro-7-nitro-5-phenyl-2h-1,4-benzodiazepin-2-one. A benzodiazepine derivative used as an anticonvulsant and hypnotic. ... Pharmacological action: anti-anxiety agents, anticonvulsants, gaba modulators, sedatives, nonbarbiturate. ... Chemical name: 2H-1,4-Benzodiazepin-2-one, 1,3-dihydro-7-nitro-5-phenyl- ... (12 Dec 1998) ......
Nitrazepam is a hypnotic drug given by mouth to treat insomnia.
[n] - a hypnotic and sedative drug of the benzodiazepine type
noun a hypnotic and sedative drug of the benzodiazepine type