Yes, nootropics can help anxiety a lot which then helps stop stuttering. Getting into high school and meeting new people I had a somewhat stutter and had a hard time finding the right words mostly to people who I found intimidating or someone I barely know. I started using Ashwagandha and noticed that my sentences had a way better flow and could talk to anyone like normal. I wouldn't say it miraculously made me social to the people I found intimidating/new but I could definitely have a normal conversation and talk like I'm completely free of worry and doubt in my sentences to my closest friends. I have a hobby in nootropics so you can take my word for it. Look into Ashwagandha, Black Seed Oil, and L-Theanine. These are fairly cheap, Black Seed Oil seems to be the best for anxiety out of these. You'll be surprised at people's reviews on them. Try these out instead of "stuttering pills," I'm sure they're more effective at stopping anxiety. If you want to know more, you can PM me. I can list a few more if you have the budget. I'm also getting a couple more nootropics, so I could let you know how they go for fixing anxiety compared to others that I've tried.