"i&#039;m 29 years old and was diagnosed with add when i was about 11 years old. since that time i&#039;ve been on and off a variety of medications from ritalin, adderall, and most recently vyvanse which i&#039;ve been on for a year and am currently taking 70mg a day. it helps with my alertness and attentiveness, but i have some of the side effects like extremely dry mouth and little if any appetite. i am currently working during the day and take graduate classes at night and notice that the medication does not last the entire 12 hours, i&#039;ve been taking it later in the day so that i&#039;m able to concentrate in class. since i began taking the medication i have seen an increase in acne, previously i had minor occasional breakouts."