Which part, when absent, means the written document is not legally a prescription?

• A. Superscription
• B. Inscription
• C. Signa
• D. Prescriber Information

Answer: (A)

The key idea is that a prescription must identify who it is for and originate from an authorized clinician. The superscription serves as the header that marks the document as a prescription and includes the Rx symbol, the patient’s name and address, and the date. Without this header, there’s no clear patient or time frame, so the paper can’t be treated as a legally valid prescription.

The other parts—inscription (drug name, strength, dosage form, quantity), signa (instructions to the patient for use), and prescriber information (who issued the prescription and how to contact them)—are essential for dispensing and verifying details, but the absence of the superscription is the element that prevents the document from being a lawful prescription in the first place.