I’ve been on Prozac for about 5 weeks now and I feel like it’s helping a lot with my anxiety-driven stuttering. Then again, I’ve also completely cut out all caffeine from my diet which has helped a great deal. In addition to Prozac, I take Magnesium, Vitamin B1 and Lithium Orotate daily. All of these in combination has really helped me a lot. I’ve got Beta Blockers for days requiring heavy speaking too.