I weaned off Ritalin at 19 and haven't been medicated since. I was taking 20mg 5x a day. I'm now 36 and have seen my daytime sleepiness increase in the last couple years. Weight problems and stress I know play a huge part in it. Here's the question. As much as I love not being medicated because I was bombarded with tests and pills growing up, I think I'm willing to try this. Someone gave me a 30 time released a few weeks ago and it had me up for a day. Is it possible to find a dose that'll taper off at night or is it similar to Ritalin where it builds up in your system and a second drug is necessary? My fear is that I'll have to be prescribed a drug to counter it so I can sleep at night. That was the case my entire childhood growing up, with Ritalin.