i did a shitload like 60+mg's powder ( they are sold in 3 and 6 mg pellets...) and got heavilly benzoed out for a while... half life similar to clonazepam just a lot less ptent, i have a very high benzo torerance.
depending on your tolerance try 3 or 6 mg's would be my advice, its a subtle effet that builds up, so don't re-dose too soon !