I'm afraid I don't know what meds he's currently on. We hadn't seen each other for over a year until recently, so we've pretty much avoided depression talk in favor of normal father-daughter stuff. I do know that he had to try a shitton of different treatments, up to and including electroconvulsive therapy (which worked somewhat for about a month, then had no effect).

Fortunately, if memory serves, most people nowadays don't take quite so long or have to try so many different treatments to find something workable. A couple of years seems about average among the clinically depressed people I've known in my life—sometimes longer if they'd been dealing with it since adolescence, since the brain is still changing so much during most of the teenage years. The twenty-somethings have had the best luck, I think.

Fear not. Brain medicine is getting better all the time. It's not perfect but I've seen proof that it works among my friends and both sides of my family. I wish you luck again.