Hello, again. Dr. Maguire is a prescriber. I don't know what medication he is taking. He does not self-prescribe. He is treating a friend of mine with Caplyta successfully but that medication wasn't effective in my case. We’re all anxiously awaiting an effective medication to treat our stuttering but according to Dr. Maguire every case is unique. There are many interview videos of Dr.Maguire where he explains the neurological aspects of stuttering. Google his name and search for his name on YouTube. Best of luck.