What does the term "drugs" encompass?

The term "drugs" is commonly defined as including a broad range of substances that can alter physiological or psychological processes in the body. This comprehensive definition encompasses prescription medications, over-the-counter (OTC) medications, and illegal drugs.

Prescription medications are those that require a doctor's approval due to their potential effects and side effects. Over-the-counter drugs are those available without a prescription, but they can still have significant effects on the body and may interact with other medications. Illegal drugs refer to substances that are prohibited by law and can cause severe impairments or health issues.

By including all three categories—prescription, over-the-counter, and illegal drugs—the correct choice reflects the full scope of substances that can influence behavior, cognition, and physical abilities, especially in contexts such as aviation safety and human factors. Understanding this terminology is crucial for assessing the impacts of such substances on performance, well-being, and safety in aviation environments.