What is considered a "misfill"?

A "misfill" refers specifically to the act of incorrectly dispensing the wrong medication or dosage to a patient. This error can significantly impact patient safety and outcomes, as receiving the incorrect medication can lead to adverse effects, ineffective treatment, or even serious health risks. The term encompasses various scenarios where the dispensed product does not match the prescribed medication in terms of identity or dosage.

While filling a prescription for a controlled substance inaccurately may seem similar, it's essential to focusing on the broader definition of a misfill that encompasses any medication error, which aligns with option B. Providing extra medication without a prescription is generally an unlawful action but does not specifically categorize as a misfill. Returning medication to stock pertains to inventory management, not the accuracy or integrity of a prescription fill. Thus, option B accurately captures the essence of what constitutes a misfill in the context of pharmacy practice.