Often prescribed for people who need a stronger effect or who have grown tolerant to lower doses, Adderall 30mg is a higher-dose prescription drug that combines amphetamine and dextroamphetamine to treat ADHD and narcolepsy by enhancing focus, attention, and impulse control. It comes in immediate-release (lasting 4–6 hours) and extended-release (lasting up to 12 hours) formulations and is a controlled substance with the potential for abuse and dependence.