Substances requiring warnings on product labels are known as what?

• A. Habit-Forming Drugs
• B. Hazardous Substances
• C. Label-Warning Substances
• D. Restricted Substances

Answer: (A)

Substances that may lead to dependence require warnings on product labels. This is described by habit-forming drugs because the warning specifically flags the potential for physical or psychological dependence, misuse, and withdrawal with continued use. The label helps users and prescribers recognize the risk and manage it carefully, such as by avoiding abrupt stops, following dosing instructions, and monitoring for signs of misuse.

Hazardous substances focus on toxicity or safety hazards rather than dependence, restricted substances are about legal control and access, and “label-warning substances” isn’t a standard category. The habit-forming distinction directly captures the need for warning labels due to addiction risk.