Which of the following must be included on a written prescription?

Including the medication name, dosage, and the prescriber’s information on a written prescription is essential for several reasons. The medication name ensures that the pharmacy knows exactly which drug is being prescribed, reducing the risk of errors and misunderstandings. The dosage is crucial because it dictates how much of the medication the patient should take, which can vary widely between drugs and individual patient needs. Additionally, the prescriber’s information, including their name and contact details, is necessary for identification purposes and ensures that the pharmacist can verify the prescription as needed, especially if there are questions or concerns related to the medication being prescribed.

In contrast, while the patient's age and medical history, allergies and insurance details, and the prescriber’s signature and pharmacy address can be important information in the broader context of patient care, they are not mandatory components of the written prescription itself. These details do not directly influence the dispensing of the medication, which is why they are not included in the core requirements for a valid prescription.