Hello friends, My doctor has diagnosed me with hypersomnia, put me on CPAP; however, it did nothing for daytime somnolence. To address this, she put on Nuvigil 250 mg, which worked fine for 10 days after which I was back to my old self. My doctor changed my medication to Provigil 200 mg. This also worked fine for 10 days and then became ineffective. I tried stopping the drug for one week and then restarted it but still no useful result. I have told this to my doctor, and she has given me an appointment on the 27th of November. My moot point is if these drugs are not working, is there anything else which can be effective. My doctor had once suggested Ritalin, but I threw it out of the window because of its habit-forming tendency. Any ideas???