Methylphenidate
"After 20 years of seeing psychiatrists, I was finally correctly diagnosed with ADD. My life completely normalized soon after starting this drug. I took every antidepressant known to man with no results. If you change jobs, friends, wives, more often than your motor oil, ADD may be your issue too. I have suffered with this for 49 years now I feel like what I assumed normal people feel like. I thank my lucky stars every day for this wonder drug. Only reason I rated a 9  was because of the dry mouth it gives me, but a small price to pay for the benefits received."