What stimulant is FDA-approved under the brand name Desoxyn®?

Desoxyn® is the brand name for methamphetamine, which is a powerful central nervous system stimulant. Methamphetamine is approved by the FDA for certain medical uses, including the treatment of attention deficit hyperactivity disorder (ADHD) and as a short-term component of a weight-loss program. Its approval indicates that, at prescribed doses, it can have therapeutic benefits despite its potential for abuse and addiction.

The other substances listed do not have FDA approvals for medicinal use in the same context. Cocaine, while it was historically used in some medical applications, is primarily classified as a controlled substance due to its high potential for abuse. Heroin, an opioid, is illegal and not approved for any medical use in the United States. Marijuana is still classified differently across various states and remains federally illegal, though some forms may be used for medical purposes in particular circumstances. Thus, the correct answer focuses on the specific FDA-approved stimulant that is identified by the brand name Desoxyn®, which aligns with methamphetamine.