Cloniprazepam is a benzodiazepine derivative and a prodrug of clonazepam, 7-aminoclonazepam, and other metabolites.
Some of the minor metabolites include 3-hydroxyclonazepam and 6-hydroxyclonazepam, 3-hydroxycloniprazepam and ketocloniprazepam with ketone group formed where 3-hydroxy group was.
It is a designer drug and an NPS (short for "new psychoactive substance"). At the end of 2017, cloniprazepam was an uncontrolled substance in most of the countries.