|CompTox Dashboard (EPA)|
|Chemical and physical data|
|Molar mass||329.74 g·mol−1|
|3D model (JSmol)|
|(what is this?) (verify)|
Meclonazepam ((S)-3-methylclonazepam) was discovered by a team at Hoffmann-La Roche in the 1970s and is a drug which is a benzodiazepine derivative similar in structure to clonazepam. It has sedative and anxiolytic actions like those of other benzodiazepines, and also has anti-parasitic effects against the parasitic worm Schistosoma mansoni.
Meclonazepam was never used as medicine and instead appeared online as a designer drug.
In the UK, meclonazepam has been classified as a Class C drug by the May 2017 amendment to The Misuse of Drugs Act 1971 along with several other designer benzodiazepine drugs.