"i am 37 years old and was finally diagnosed with adult adhd almost 2 years ago so i was put on 20 mg adderal xr and it worked great. but i did start to notice that i would get pretty irritable on it mostly when it was wearing off. so i wanted to try a different medication to see if there was one i wasn&#039;t so grumpy on. so i started metadate cd and i was not irritable on that one at all :) but it seemed to wear off within 4 hours and made me soo tired. so now i am on aptensio and it has been pretty good so far i have only been on it for about a week and it really does last a long time and i am able to stay focused. i don&#039;t feel a crash like adderal. i would just recommend taking it early in the morning so it can wear off before you go to bed."