I was prescribed Xanax (Alprazolam) 2mg. To be honest, I thought the medication was working because when I was doing presentations for school I thought I was speaking very well. But the truth was, it makes you very drowsy and to me it was a point where I was pretty much "drunk" so I really couldn't comprehend whether I was speaking clearly or stuttering. My stutter worsens when I have anxiety. This may or may not for you but ever since I started working out and taking care of myself I feel more confident which seems to have a positive effect on my stutter. Really I believe there are factors to which can worsen your stuttering and for me it was my self confidence and being afraid of what people thought. ​ TL;DR Tried Xanax, thought it worked but really I was "drunk/high" to which I couldn't really tell. Trust me on this I've tried to find a miracle drug that can cure it all. But really everyones different and some things may work while others don't.