Speed taken in pill form once a day. Like a vitamin, but one that makes you think, move, and talk faster. Examples include Ritalin, Adderall, Caffeine, and Ephedrine. At one time humans obtained all the stimulation they needed from food, alcohol, and cocoa leaves. But in today's fast-paced culture, doctors recommend you take your amphetamins. (Adderall can even be chewed)
Bro: Dude, you all right? You take your amphetamins this morning? We gotta go blast our bis and tris at the gym in like five minutes. You better snort some; it'll hit you quicker.
Bro's Friend: Ok?
Bro: Sack up, Nancy. It's prescription.