Dude, who gives a *&^%. If the pills help you, take them. I know a ton of people who do coke and study, so I am hardly going to condemn anyone for doing AD. And before anyone jumps my *&^% for supporting this, I study high on life + coffee.
Unlike speed or cocaine, however, you can still function normally.
P.S. When I used used to take Adderall and Ritalin per prescription, it completely killed my sex drive, which sucked.
This can't be anything else but sarcasm! I mean, they say you have a hell of a libido when on amphetamines!
If you use them occassionally you'll see your sexual appetite increases considerably. However if you take them every day you'll end up with a weenie.