Nonbenzodiazepines (/ˌnɒnˌbɛnzoʊdaɪˈæzɪpiːn, -ˈeɪ-/, 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.Cyclopyrrolonesβ-CarbolinesOthers Nonbenzodiazepines (/ˌnɒnˌbɛnzoʊdaɪˈæzɪpiːn, -ˈeɪ-/, 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.