What is the primary function of an auxiliary label?

The primary function of an auxiliary label is to provide additional instructions or warnings about a medication. These labels serve as critical communication tools that enhance patient safety and ensure proper use of the medication. For example, an auxiliary label may instruct patients on how to take the medication (such as "Take with food" or "Shake well before use") or warn them of specific considerations (like "May cause drowsiness" or "Avoid exposure to sunlight").

This additional information helps reinforce the knowledge that healthcare professionals, including pharmacy technicians, impart to patients at the point of dispensing, ensuring patients understand how to use their medications safely and effectively. Such labels are vital for preventing misuse and minimizing the risk of adverse effects, highlighting their essential role in medication management.