Final answer:
A licensed pharmacy does not usually need a separate non-prescription license to sell over-the-counter (OTC) drugs, as OTC regulation is included under the FDA and the Federal Trade Commission oversees advertising and promotion. It is always advisable to check for specific local regulations.
Step-by-step explanation:
A licensed pharmacy is generally authorized to sell both prescription and over-the-counter (OTC) drugs. OTC drugs are medications like aspirin or ibuprofen that do not require a doctor's prescription. The regulation of nonprescription drug products, including advertising and promotion, falls under different regulatory bodies. The FDA manages the list of approved OTC ingredients and drug products, while the advertising and promotion are regulated by the Federal Trade Commission. As such, a pharmacy already holding a license to dispense prescription medications would not typically need a separate non-prescription pharmacy license to sell OTC drugs; however, local laws or regulations can vary and should be consulted.