I am prescribed 40 mg of adderall (dextroamphetamine and racemic amphetamine) xr and every day it makes me feel sick. what should do? it makes me want to throw up and makes my stomach rumble but i can't eat anything.

Try something else: You don't mention any benefit, and the side effects certain sound unpleasant. If you have adhd, consider trying either a methylphenidate product, another type of amphetamine (vyvanse), or a non-stimulant such as atomoxetine or guanfacine. You could also try seeing if when you take it matter, e.g., after a good breakfast with lots of protein.