Hi u/EuropesNinja \- Thanks for your post. Indeed, one of the reasons that researchers studied certain medications for stuttering is because of their effect on GABA. (e.g., Pagoclone: [https://journals.lww.com/psychopharmacology/Abstract/2010/02000/Exploratory\_Randomized\_Clinical\_Study\_of\_Pagoclone.9.aspx](https://journals.lww.com/psychopharmacology/Abstract/2010/02000/Exploratory_Randomized_Clinical_Study_of_Pagoclone.9.aspx)). At present, there are no FDA-approved medications for stuttering, so any prescriptions are off-label. I know that people do try phenibut on their own, but I can't comment on the specific value of it given that the research has been limited. Still, there may be something to be learned in future studies of GABAergic compounds.