@BirdDancer: Yes, that's correct. I don't know if this is true or not, but I've heard that Provigil is "milder" than stimulants, FWIW. It is also sometimes used in patients with bipolar to improve depression -- although with close observation. So it can help with @childofchaos831 with depression, too. (See here: Adjunctive use of modafinil in bipolar patients: just another stimulant or not? - PubMed - NCBI)

In one case, a patient developed psychosis within 2 days of taking it (See here: Modafinil Induced Psychosis in a Patient with Bipolar 1 Depression). So, I guess the uptick in mood can happen pretty rapidly, if it does happen. Though the article does go on to state that the patient's psychosis had abated within a few days of cessation, so I guess the good news is that if it *does* happen, it seems to go away quickly? The unfortunate thing about the article, though, is that it doesn't really say what happened after the psychosis wore off (e.g., if he became depressed again, etc.).