Which information must be included on a prescription label?

The inclusion of the date the prescription was filled on a prescription label is essential for multiple reasons. It helps healthcare providers and pharmacists track the medication's dispensing history and ensure that the patient has received their medication in a timely manner. This date is crucial for assessing the medication's effectiveness, monitoring the need for refills, and managing potential expiration issues.

In practice, knowing when a prescription was filled allows for better communication among healthcare providers, patients, and pharmacists. For instance, it can prevent unnecessary refills if a medication is still being used effectively and was filled recently. The date is also vital for maintaining accurate medication records and ensuring compliance with regulations regarding medication administration and patient safety.

Other options, while interesting, are not relevant or practical for a prescription label. For example, a patient's favorite color would not serve any purpose in the context of medication management or safety. Similarly, a doctor's personal phone number is considered private information and is not typically included on a prescription label for confidentiality reasons. Lastly, while a prescriber's signature is important for the legitimacy of the prescription, it is usually verified through the prescription itself rather than displayed on the label that goes with the medication.