A doc can perscribe.
Just for info, my doc is a regular doc, and he's perscribed me the accutaine. He even bumped the mg after the first round seemed to fall short of our expectations. This is the second cycle of done of it, and my first cycle was perscribed by a different doc (but still just a reg MD).
Works pretty well. Expect the following:
Dry skin and lips
Worse acne for a while (maybe 2 - 3 weeks)
Possible nose bleeds (happened once while I was at gym)
Those are the only real sides I seem to have while doing it. The lips are annoying, only because they crack and bleed a little, just general discomfort from them. Doen'st make you very kissable either.
Other than that, I really think the liver damage is minimal. Being docs they have to warn of everything, since law suits are a pain in their ass. And docs these days seem to cover their butts with everything. Throughout my cycle my liver values have remained clear, even after bumping up the dose. If you do choose to do another oral with it, just make sure you get periodic blood tests. But I really don't think it's going to hurt you.