What information must be included on a label when a physician dispenses regulated drugs?

The requirement for labeling when a physician dispenses regulated drugs emphasizes the need for clear identification and accountability in every prescribed treatment. The correct choice highlights the importance of including the dispensing practitioner's name along with the date of drug issuance on the label. This information is crucial because it ensures that the individual responsible for the dispensing is easily identifiable, which is essential for tracking prescriptions and managing patient care.

Additionally, including the date of drug issuance helps to inform patients and healthcare providers about the timeline of the medication, which is vital for monitoring treatment adherence and assessing the appropriateness of therapy over time.

In this context, the other options do not fully encompass the critical elements required by regulatory standards for labeling drugs dispensed by physicians. For instance, while the physician's name and drug expiration date are important, they do not create the full accountability and traceability that is required. Similarly, patient information like the name and manufacturer's address are relevant but do not focus as directly on the dispensing practitioner’s responsibility and the drug issuance date. Moreover, details such as social security numbers and treatment plans are not typically included on dispensing labels due to privacy and confidentiality concerns, as well as the need to keep labels clear and concise.