Adderall 30mg is a high-dose prescription stimulant containing a combination of amphetamine and dextroamphetamine. It is commonly prescribed for attention deficit hyperactivity disorder (ADHD) and narcolepsy. Adderall 30mg is available in both immediate-release (IR) and extended-release (XR) formulations. The IR version typically lasts 4-6 hours, while the XR version provides effects for up to 12 hours.