What must a transferring pharmacist write on the prescription during a transfer?

When a pharmacist transfers a prescription to another pharmacy, it is essential for clarity and record-keeping that the original prescription is properly marked. Writing "VOID" on the prescription indicates that the prescription is no longer valid at the original location. This action helps prevent any potential confusion regarding the status of the prescription and signals to any subsequent pharmacists that the medication should not be dispensed from the original pharmacy.

Marking the prescription in this way ensures compliance with regulatory requirements, which often dictate how transfers must be documented. By marking it as "VOID," the transferring pharmacist also helps maintain the integrity of the patient's medication history and supports the continuity of care by clearly indicating that the prescription has been reassigned.

The other options, while they may seem similar, do not universally carry the same regulatory significance or clarity, which reinforces why "VOID" is the correct term to be used in this context.