"Ritalin until highschool.. In high school Adderal ; then, dexadrine- college. The chemical d-amphetimine (less hard on your body) in those two drugs helps adhd sufferers and keeps me less angry.. D-amphetimine=calm and focused for ADHD suffers. In theory D-methyl-amphetamine would be the best for ADHD with less side affects. The Dr. gave me 4 sample packs a month of 150mg nuvigil once a day. So far, it&#039;s the best ADHD medicine I have ever taken because less side affects and it lasts all day ! It increases male sex drive and stamina and hardness 100% All the other ADHD meds hurt my sex life-but nuvigil is a sexual wonder pill. ADHD often causes pre-mature ejaculation and less hardness but with Nuvigil I am sexually functioning correctly. A+"