narcolepsy
"When I was first diagnosed with narcolepsy at 13, I started with Ritalin and was taking about 40mg per day and definitely helped with my narcolepsy but wasn't strong enough to keep me fully awake and repress my cataplexy. I now take 81mg of concerta and 10mg of ritalin in the mornings and if needed another 10-20mg ritalin in the afternoons or when feeling tired. It's definitely been a life saver especially during class or when I'm out. Didn't have or had any significant side effects and am so glad to have been introduced to it"