Which substance is an example of a Schedule I drug?

Heroin is classified as a Schedule I drug because it has a high potential for abuse, is not currently accepted for medical use in treatment in the United States, and lacks accepted safety for use under medical supervision. Schedule I substances are deemed to have no accepted medical purpose and are considered the most dangerous in terms of potential for addiction and harm.

In contrast, methamphetamine, Adderall, and Xanax fall under different schedules due to their medical uses and legal status. Methamphetamine is a Schedule II substance due to its high potential for abuse but also has accepted medical uses in limited contexts. Adderall, which is used to treat ADHD, is also categorized as Schedule II for similar reasons. Xanax, used for anxiety and panic disorders, is classified as Schedule IV due to its lower potential for abuse relative to Schedule I and II drugs but still requires a prescription.

Understanding the scheduling of drugs aids in recognizing the legal implications and therapeutic uses tied to substance regulation.