Alprazolam is Xanax—the drug has high efficacy, and fluency can indeed be reached with it, but at the cost of substantial negative long term effects on cognitive faculties—this is actually well known. The trade off is cognitive dulling which I can assure you, is not worth it. The SSRI you mentioned would help but that’s mainly for depression. Although Citalopram does help, Zoloft would likely be more effective. All of this well documented! I’m conducting research on the role of inhibition (glutamate) on stuttering. If you drink alcohol, I’m sure you have noticed a substantial increase in fluency. I aim to mirror the effects of alcohol without the long term negative effects. There currently is no miracle pharmaceutical treatment plan unfortunately. The condition is extremely under-researched.