International Association for Healthcare Security and Safety (IAHSS) Basic Officer Certification Practice Exam 2026 - Free IAHSS Practice Questions and Study Guide

Schedule I substances are classified as having a high potential for abuse, having no currently accepted medical use in treatment in the United States, and lacking accepted safety for use under medical supervision. Examples of Schedule I substances include heroin, LSD, marijuana, and methaqualone, all of which fit these criteria.

Heroin is an opiate with a high risk of addiction and no accepted therapeutic use. LSD (lysergic acid diethylamide) is a potent hallucinogen that has not been endorsed for medical use due to its unpredictable effects. Marijuana has undergone scrutiny and debate regarding its status, but federally it is still classified as a Schedule I substance. Methaqualone was once prescribed for insomnia but has been banned due to its high potential for abuse.

The other categories contain substances that either have medical uses or are classified as lower schedules due to accepted medical applications, such as morphine and methadone, which are Schedule II opioids, or diazepam (Valium) and alprazolam (Xanax), which are classified as Schedule IV substances. This distinction is crucial in understanding drug classifications and the accompanying legal implications.