Weed and kratom make it worse. Benzos do help, but you're playing with fire. The best two drugs that help my stutter are amphetamines(adderall, vyvanse. It's amazing how well it works.) and phenibut. I read a study that said dopamine levels may effect stuttering. It makes sense that amphetamines release a lot of dopamine helping your speech, or it could just be the ultra confidence boost.