My regular doctor prescribed it - he's a general practitioner. It is quite expensive if you don't have insurance.

It's definitely something you'd want to talk to your doctor about, and they will monitor you closely when you go on it. If it turns out that it doesn't work for you, it can have some negative side effects on your personality. People get really angry and irritable, so if that happens you'll want to get off of it.

Definitely talk to a doctor about it if you think it is impacting your ability to work or study effectively.