Found it also on a PDF by a university with other pharmaceutical treatments [https://ahn.mnsu.edu/globalassets/college-of-allied-health-and-nursing/speech-hearing-and-rehabilitation-services/stuttering/serious-information/the-bookstore/drugs.pdf](https://ahn.mnsu.edu/globalassets/college-of-allied-health-and-nursing/speech-hearing-and-rehabilitation-services/stuttering/serious-information/the-bookstore/drugs.pdf)