I thought i should bring this up, as i don't seem to see it specifically addressed, and i feel like we should because someone could easily dose phenibut with heavy opiates and die. IME, phenibut potentiates kratom and regular mu receptor agonists by what feels(subjectively) to me like somewhere around 50%. Which is awesome, but also an important thing to know. This effect seems stronger than benzos, more like ghb and 3g of phenibut + 40mg oxy produces dangerous respiratory depression for me, doing it one night with dope and booze ended up in a narcan shot. Just sayin, be safe!