What are the five categories of controlled substances?

The five categories of controlled substances include stimulants, narcotics, depressants, hallucinogens, and cannabinoids. Stimulants are substances that increase alertness, attention, and energy. Narcotics primarily refer to opioids that relieve pain, while depressants are substances that reduce neural activity and slow down body functions. Hallucinogens can alter perception, mood, and thought processes.

Capsules, antidepressants, opioids, and steroids mentioned in the other options do not fit as universally recognized categories within the schedule of controlled substances. Some are specific drugs rather than categories, and others do not represent a category for the purpose of classifying controlled substances primarily used in law enforcement and regulatory contexts.

Focusing on the broader categories allows for a clearer understanding of the classification system used in law enforcement to address drug-related offenses and health concerns.