What information is NOT required on a prescription for a controlled substance?

In the context of prescriptions for controlled substances, specific information is mandated to ensure proper tracking and dispensing of these medications. While various details help maintain compliance with regulations, the patient's phone number is not a requisite on a prescription for a controlled substance.

Typically, a valid prescription for controlled substances must include the prescriber’s DEA number, which is crucial for identifying the practitioner authorized to prescribe controlled substances legally. The date of the oral order is important for determining the validity period of the prescription and ensuring it is filled within the legal timeframe. Additionally, an indication for generic substitution may be required to inform the pharmacy whether the prescriber allows a generic equivalent to be dispensed if available.

The absence of the patient's phone number from the list of required information highlights that while having this contact detail can be useful for the pharmacy, it is not essential for the legitimacy or fulfillment of the prescription itself.