Which situation describes the appropriate use of drugs?

Question

using an over-the-counter drug according to label instructions

using your friend’s prescription drug according to your friend’s instructions

using your friend’s prescription drug according to label instructions

using an over-the-counter drug according to your friend’s instructions

Answer 1

The situation that describes the appropriate use of drugs is:

Using an over-the-counter drug according to label instructions.

This ensures that the drug is used safely and effectively as intended by the manufacturer.