Final answer:
Pharmacies must post certain information to ensure safety and efficacy as regulated by the FDA.
Step-by-step explanation:
Pharmacies must post conspicuously certain information to ensure safety and efficacy as regulated by the Food and Drug Administration (FDA) in the United States. This includes displaying the medicines that they are allowed to sell, as well as information about their safety and proper use. Examples of information that pharmacies may be required to post include drug prices, warning labels, and instructions for use.