What additional information is needed for a controlled prescription transmitted via facsimile?

For a controlled prescription transmitted via facsimile to be considered valid, it is essential to include the prescriber's name and signature. The requirement for a signature serves a critical purpose in ensuring that the prescription is authentic and has been issued by a licensed prescriber.

In the context of controlled substances, proper documentation is vital to prevent misuse and ensure regulatory compliance. A physician's name and signature confirm both the legitimacy of the prescription and the authority of the prescriber to issue that prescription. Without this information, the prescription could be deemed invalid, potentially leading to legal issues or issues with patient safety.

The other options presented do not address the specific requirements for a controlled prescription transmitted via facsimile. Patient's height and weight, emergency contact number, and doctor's office hours are not necessary for the validity of the prescription itself. Regulations primarily focus on the prescriber's identification and the secure transmission of the prescription to prevent fraud and ensure that the medication is prescribed appropriately.