Your friend has a legal prescription for Adderall, so surely it can’t be too dangerous to borrow a pill from time to time… right? Wrong. Adderall, an amphetamine, is a central nervous system stimulant that is used to manage conditions such as ADHD and narcolepsy. While amphetamines may be safe for your friend to use as prescribed, your desire to chase a high can result in dependency and a host of dangerous side effects. Without guidance from your physician, you are far more likely to use an unsafe amount that can result in a life-threatening addiction.