I'll be honest with you and say that both of the two attempts at taking Provigil made me manic. At the time it was prescribed to me because I had been depressed with terrible hypersominia. Both of those times I became manic within a week or so. The first time the psychiatrist noticed it quickly and told me to stop, and I did. The second time I was on vacation in another state. It got so bad that I was doing all kinds of crazy things and people in public were making loud comments about my behavior. I even had a visual hallucination one night. I wasn't sleeping at all. Hubby threatened to take me to the hospital there, even though it was many states from home. Hubby made me stop the Provigil and the mania eased quite quickly. Provigil was kind of interesting in that sense. All of my other manias in my life were hard to stop without major increases in antipsychotics (and often hospitalization). That wasn't necessary from my Provigil-induced manias. Just stopping the Provigil worked.

When we returned from vacation I was still at least a little manic, but much less so. I called the pharmacy and told them to cancel my future refills. Then I seemed to start missing the high (like an addict) and called the pharmacy and asked if there were refills left. They said they already cancelled them. I had to tell my psychiatrist about all of that and he has told me to never take that medication again.

Just my experience. I have read others say that it was helpful.