Which of the following is a commonly used Schedule II opioid analgesic?

Fentanyl is a commonly used Schedule II opioid analgesic, recognized for its potency and effectiveness in managing severe pain. It is synthesized from opium and acts on the central nervous system to relieve pain. Fentanyl is prescribed in various formulations, including transdermal patches, lozenges, and injectable forms, making it a versatile option in pain management, especially in patients with cancer or undergoing major surgeries.

Other medications listed have different classifications and uses. Dextroamphetamine is a stimulant primarily used to treat attention deficit hyperactivity disorder (ADHD) and narcolepsy, rather than pain management. Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) used to relieve pain and reduce inflammation, which does not fall under the Schedule II classification. Similarly, acetaminophen is an analgesic and antipyretic but is not classified as a controlled substance, making it distinct from Schedule II opioids like fentanyl. Understanding these classifications helps in grasping the regulatory framework governing prescription medications and their intended uses.