Which of the following is true about carbon copies or duplicate written prescriptions?

Carbon copies or duplicate written prescriptions are not considered valid prescriptions. This stems from the requirement that a prescription must be a legitimate document that includes specific information and is executed in a manner that allows for proper dispensing by a licensed pharmacist. The original prescription is the authoritative document that contains the prescriber's signature, date, and other necessary elements, which may be compromised or illegible in a carbon copy or duplicate form.

By relying on carbon copies, there is potential for misuse or confusion regarding the validity of the prescription, as it does not carry the same weight or legal standing as the original. As a result, pharmacies cannot legally fill prescriptions that are merely duplicates or copies, as they do not meet the regulatory standards for authenticity that are crucial for patient safety and the integrity of the medication dispensing process.