What is "pyrazolam"

Pyrazolam is a benzodiazepine derivative originally developed by a team led by Leo Sternbach at Hoffman-La Roche in the 1970s, and subsequently "rediscovered" and sold as a designer drug starting in 2012.

Pyrazolam has structural similarities to alprazolam and bromazepam. Unlike other benzodiazepines, pyrazolam does not appear to undergo metabolism, instead being excreted unchanged in the urine. It is most selective for the α and α subtypes of the GABA receptor.