I have tried some anxiety meds. The ones i tried where pretty mild but they gave a decent effect. The crappy thing about anxiety meds though is that they make you tired, so it was kinda a double edged sword. If i took a pill when i was felling alert and energetic it would greatly improve my speech. But if i took one when i was already tired it would make me all mushy in my head, which made my speech worse. I am thinking of trying some medication that can improve my concentration in the future. I have heard that aderral and concerta have shown some promising results in stutterers.