An adverse effect may become apparent only after a drug has been on the market for some time and prescribed to large numbers of patients.

Question

Quizplus · Accepted Answer

This statement is true. Adverse effects, also known as side effects or adverse reactions, are not always apparent during clinical trials or when a drug is first approved for use. It may take years and extensive use by patients for certain adverse effects to become apparent. This is why post-market surveillance and reporting systems are important to monitor drugs for any potential adverse effects, and why ongoing research and evaluation of medication safety is crucial.

An Adverse Effect May Become Apparent Only After a Drug