Order Adderall Xr Online Overnight for ADHD with PayPal - Medsshoppharma What is Adderall? Adderall is a prescription drug that comes under the stimulant category of medications. It is a combination of two salts namely amphetamine and dextroamphetamine. These two salts are known as the CNS (Central Nervous System) Stimulants. Adderall comes in several strengths such as Adderall XR and Adderall IR. The highest required strength of the extended-release to buy Adderall 30mg online.