Which of the following is considered a prescription error?

Dispensing the wrong dosage form of medication is indeed considered a prescription error because it directly affects how a patient receives and uses their medication. Each dosage form (such as tablet, liquid, or injection) is designed to deliver the active ingredient in a specific manner that can influence absorption rates and the overall effectiveness of the therapy. If a patient receives the wrong form—say, a tablet instead of a liquid—they may not be able to take the medication as prescribed, which can lead to treatment failure or unintended side effects.

While other options can involve errors related to pharmacy practice, they may not all qualify as direct prescription errors in the same way. Providing extra medication might enhance patient adherence, but it can lead to potential wastage or misuse. Changing the medication brand without notification can create confusion but usually does not alter the dosage form itself. Failing to label the medication certainly poses a risk for misuse or confusion but does not directly involve the incorrect dispensation of a dosage form. Hence, the wrong dosage form is a critical factor in ensuring safe and effective medication delivery to patients.