"i&#039;ve been on this medication for over six months now for my severe adhd. i take it as needed to get my studying done. usually 10mg two or three times a day does the trick nicely. before starting ritalin i failed miserably at college and could never focus or study for more than 1 minute. now i get near perfect scores across all my subjects. i take it in the evening (after 7pm) as this is when i get my work done. also i experience no comedown or crash when i take it in the evening. this medication literally saved my life allowing me to continue my studies and pursue my interests. it hasn&#039;t lost it&#039;s effectiveness in over six months and i have very little side effects. god bless novartis for inventing this life changing drug."