Adderall is a prescription medication; used to treat attention and sleeping disorders. This medication is approved by the FDA, as a combination of two ingredients amphetamine and dextroamphetamine. Take directly by mouth, it takes 20-30 minutes to start working in the body. It comes to different suitable doses;

Adderall 5mg,
Adderll 10 mg.
Adderll 15mg.
Adderll XR 20 mg.
Adderll 30 mg.
Adderll XR 10 mg.