A readers asked me how drinking affects my stuttering. I had a very clear answer. I am a teetotal and I just don't know! ,-)
Generally two things happen. You
can get more relaxed, you think much less about what
other people think about you, and your motor control goes down. So I expect moderate drinking to ease stuttering, and severe drinking to let you loose motor control.
To be honest, I am not sure about research findings. People taking any drugs (psychoactive substances) report changes in fluency, but it seems to be different for different people.
So share your experience with us! Any drug is allowed! ;-)