Which drug is represented as an example in Schedule I Narcotics?

Schedule I Narcotics are classified as having a high potential for abuse, no accepted medical use in treatment in the United States, and a lack of accepted safety for use under medical supervision. LSD, or lysergic acid diethylamide, fits this definition perfectly, as it is a powerful hallucinogenic drug that is not approved for any medical uses and is illegal in virtually all circumstances.

In contrast, the other drugs listed have recognized medical uses. Oxycontin is a prescription pain medication containing oxycodone, classified as a Schedule II opioid due to its potential for abuse but is medically accepted. Dilaudid, which contains hydromorphone, is also a Schedule II narcotic with valid medical uses for severe pain. Adderall, a combination of amphetamine salts, is classified as Schedule II as well and is used to treat attention deficit hyperactivity disorder (ADHD) and narcolepsy.

Therefore, LSD is the correct answer as it exemplifies the characteristics associated with Schedule I drugs, which are deemed to have no legitimate medical applications and a high risk for abuse.