The strongest benzo potentiator i know of is pregabalin or lyrica brandname. This stuff i also found the most effective med when it came to suppressing a benzo withdrawal so i expected badness after becoming dependent to 200 mg oxazepam, but nothing like a benzo WD and that was an unexpected great surprise. Those 200 mg oxazepam(roughly similar to 80 mg diazepam, but shorter acting) could barely be felt, but combined with lyrica just 50 mg oxazepam were felt strongly only without this benzo numbness that sucks just try this if desired dont forget though to take no more then 1/4 of the used to benzo dose with say 300 mg pregabalin, a medium dose while prescribers on average wont dose higher then 600 mg lyrica, but i was prescribed 900 mg and take it daily in one go laced with some librium. Librium is a shitty type of benzo, but together with pregabalin even librium can feel nice. Take care and know what you do else dont do it.