Why would a doc prescribe provigil? Would it had an effect if you don t need it?

Alert and focused. Not sure why your doc prescribes Provigil for you, but the drug was originally prescribed for narcolepsy. Many other uses have been found including improving alertness, focusing, motivation, helping with jet lag, some weight loss, and more. It would seem it can also be used for some depression symptoms, such as hypersomnia, loss of interest, concentration deficits, etc.