Which of the following drugs is listed as Schedule IV in the material?

• A. Dexedrine
• B. Adderall
• C. Mazindol
• D. Ritalin

Answer: (C)

Scheduling drugs is about their potential for abuse and their accepted medical use. Schedule IV represents medicines with medical use and lower potential for abuse and dependence than Schedule III, though some risk remains.

Among these, dexedrine and adderall are strong stimulants with a high risk of abuse, so they’re placed in Schedule II. Ritalin is also a stimulant with a similar high abuse potential, placing it in Schedule II. Mazindol, used as an appetite suppressant, has a lower abuse liability relative to the amphetamines and was categorized as Schedule IV. That’s why mazindol is the correct choice here.