What is the difference between a therapeutic effect and an adverse effect?

• A. Adverse effect is the intended beneficial outcome.
• B. Therapeutic effect is an unintended harmful outcome.
• C. Therapeutic effect is the intended beneficial outcome.
• D. Adverse effect is any minor side effect only.

Answer: (C)

The key idea is distinguishing what the drug is meant to do from what the drug can also cause that isn’t wanted. The therapeutic effect is the intended beneficial response—the one you’re aiming for when you administer the medicine. An adverse effect, on the other hand, is an unwanted or harmful reaction that can occur alongside the therapeutic effect, even at normal doses.

So the statement that the therapeutic effect is the intended beneficial outcome is correct. For example, giving an analgesic aims to relieve pain (therapeutic effect). The same drug might cause nausea or drowsiness as adverse effects. Adverse effects aren’t limited to minor side effects and aren’t the intended benefit, which is why the other options don’t fit.