Which of the following must be included on every prescription label?

The requirement for including the pharmacy name and address on every prescription label is rooted in regulations that aim to ensure the identification of the dispensing pharmacy. This information is crucial for several reasons: it allows patients to know where their medication originated, aids in the proper processing of medication refills, and provides a point of contact in case there are any questions or issues regarding the medication. Including the pharmacy name and address helps to enhance accountability and transparency in the dispensing of medications.

In contrast, the other choices do not meet the necessary criteria for prescription labeling. A patient's social security number is not required and is considered sensitive information that should be protected for privacy reasons. A doctor's college degree is irrelevant to the medication being dispensed and does not contribute to the safety or efficacy of the medication. Patient insurance information, while important in the healthcare process, is not a mandatory inclusion on the prescription label itself and may vary based on privacy policies and regulations.