Im 13 and you take 20 mg of dextroamp-amphet should you start taking 2 pills?

If you are prescribed one 20 mg pill daily, that is the amount you should be taking! If you feel like it is not helping you enough, talk to your doctor. The Adderall XR ( dextro-amphet) comes in 30mg capsules also, so ask your doctor if that may be a better fit for you. Just be careful, you don't want to start taking too many drugs at your age!