If you are planning to buy Adderall XR online, then do not worry, it is absolutely legal. However, it does have little restrictions and one must follow it to buy adderall legally. As it is a prescription medication, if you order adderall online without prescription, it is against the law. Also, amphetamine and dextroamphetamine combination drug is a controlled substance, it has potential for abuse and addiction. Therefore, one must use it after getting a Rx.