Which information on a Schedule II prescription cannot be modified?

The name of the patient, name of the prescriber, and name of the drug on a Schedule II prescription are critical pieces of information that must remain unchanged due to the stringent regulations governing controlled substances. These elements are foundational for the validity of the prescription. A Schedule II medication is highly regulated because of its potential for abuse and addiction, and any alterations to this essential information could lead to significant legal and safety issues.

The name of the patient is vital to ensure that the medication is being dispensed to the correct individual, and any modifications could result in dispensing errors or misuse. Similarly, the name of the prescriber must remain accurate to authenticate the prescription and verify the authority under which the medication is prescribed. Lastly, the name of the drug is crucial as it identifies what is being prescribed and monitored.

While certain aspects of a prescription, such as the dosage form, date, quantity, and other details, can be modified under specific circumstances by the pharmacist or with the prescriber's consent (depending on state regulations), the core elements mentioned cannot be changed. This strict regulation helps to uphold the integrity of the prescribing process for controlled substances, ensuring patient safety and compliance with legal standards.