What is "nonbenzodiazepine"

n. A drug that is not a benzodiazepine: specifically, an imidazopyridine, pyrazolopyrimidine or cyclopyrrolone, which have similar effects.

Nonbenzodiazepines (, sometimes referred to colloquially as "Z-drugs") are a class of psychoactive drugs that are very benzodiazepine-like in nature. Nonbenzodiazepine pharmacodynamics are almost entirely the same as benzodiazepine drugs and therefore employ similar benefits, side-effects, and risks. However, nonbenzodiazepines have dissimilar or entirely different chemical structures and are therefore unrelated to benzodiazepines on a molecular level.