What can be marked on a copy of other prescriptions given to a patient?

When a prescription is provided to a patient as a copy and not intended to be dispensed, it is important to communicate its purpose clearly. Marking the copy as "For information purposes only" conveys that the document is not an actionable prescription and can help avoid any confusion that might arise if a patient were to attempt to fill it at a pharmacy. This labeling ensures that the patient understands they are receiving this document for reference, rather than as an authorization to obtain medication.

Clearly marking the copy indicates to all parties involved that it is strictly for informational use, thereby preventing any potential misuse. The other options, while they might seem relevant, do not effectively communicate the intended use of the copy as clearly as stating it is for information purposes. By using this specific phrase, the risk of misinterpretation is minimized, making it the most appropriate choice.