No Drugs, No Smoking, No Alcohol, No Injection Signs - Prohibition Symbols Explained #1411895 (License: Personal Use)

This image displays four universally recognized prohibition symbols, each featuring a bold red circle with a diagonal slash over a black icon: cannabis leaf, lit cigarette, wine bottle with glass, and syringe. These signs communicate strict restrictions on substance use and are designed for high visibility and immediate comprehension in regulated environments.

Used in healthcare settings, schools, workplaces, transportation hubs, and public venues to enforce substance-free policies; matches user intent for safety compliance, regulatory signage, or educational material about prohibited behaviors.