"i was prescribed the 10mg ir ritalin, to be taken three times a day a few weeks ago. to say the least, i have developed a tolerance to the drug. it has a bad comedown 2-3 hours after i take the drug. but it has done wonders for my depression and adhd symptoms. the only downside i found is that it makes me feel like a zombie, too focused, much nervous and has a nasty after-effects. but so far it has been a revolutionary step in my life. i will try switching to the la version though."