1) Benzodiazepine 2) Halcion 1) Halcion 
Triazolam (marketed in English-speaking countries under the brand names Apo-Triazo, Halcion, Hypam, and Trilam. Other names include 2`-chloroxanax, Chloroxanax, 2`-chloro-alprazolam, Triclazolam, and Chlorotriazolam) is a benzodiazepine drug. It possesses pharmacological properties similar to that of other benzodiazepines, but it is generally on.....
(from the article `sedative-hypnotic drug`) ...also require a much smaller dosage than do barbiturates to achieve their effects. The benzodiazepines include chlordiazepoxide (Librium), diazepam ...
<drug> This hypnotic prescription drug is used to treat insomnia. ... (09 Oct 1997) ... 
(tri-a´zә-lam) a benzodiazepine used as a sedative and hypnotic in treatment of insomnia; administered orally.
[n] - a form of benzodiazepine (trade name Halcion) frequently prescribed as a sleeping pill
Halcion noun a form of benzodiazepine (trade name Halcion) frequently prescribed as a sleeping pill; usually given to people who have trouble falling asleep