Hello! I'm curious to know if anyone else takes Provigil. It is a stimulant but unlike others has no cardiac effects. It was originally prescribed for narcolepsy. My neurologist started me on it for excessive daytime exhaustion after several sleep studies. Now those are fun! I've been taking it for 20 years and for me it's a life saver. I take in morning and in afternoon after a rest. It gives me a little energy (which is not saying much!) and helps me think more clearly. I feel most like my old self while it's working. I'm aware of the problems with 'false' energy and am careful to pace myself. Anyone else taken it?