Actually - I think that barbituates are closer then benzodiazepines in their effects..
Make your own? Sorry, while there are synths out there, it's a far cry from kitchen chemistry as you have to make precursors to precursors - you're better off making something like MDMA or Meth, selling it, then buying huge amounts of other downers, taking them and forgetting you're not on real ludes anyway!
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