I love this, I think this is so interesting. The first few comments here all say that their stutter gets worse from weed, but that's not my experience at all. My experiences with drugs: Weed makes my stutter almost go away, but every once in a while I still stutter. Still sometimes a stutter slips through but it's a better 'cure' than all the speech therapies I've had. It didn't have any negative effects on my speech. I think it's just because I'm much calmer. [Here's a video](https://www.youtube.com/watch?v=02e-_3qrIHI) of a woman with a severe stutter using marihuana as 'medicine'. You can see the effect at around 4:50 but you should also check how severe her stutter is in the first part of the video. Alcohol: my speech gets better after the first few beers as I gets me more loose (I guess) and it just makes me ramble on without thinking more. But as soon as I get *really* drunk my stuttering - actually not just my stuttering, just my speech in general - becomes a lot more severe. XTC: The first time I did this, I was in a bad 'stutter period'. The level of my stuttering fluctuates over months/weeks and at that time it was pretty bad. When I did XTC I realized after like 6 hours that I hadn't stuttered the entire night, which completely blew my mind. Since then I've done it a lot more and it has never been as 'flawless' as the first time, but still it almost disappears. I've also done some mushroom/psychedelic stuff and I'm quite sure it also makes my stutter less severe, but I'm not very sure about that - for obvious reasons.