Which auxiliary label would be appropriate for the sig I-ii gtts ad ud prn?

The sig I-ii gtts ad ud prn indicates that the medication should be administered as 1 to 2 drops in the affected ear(s) as needed. In this case, the appropriate auxiliary label to attach to the medication would emphasize the specific route of administration.

Labeling the medication with "For the ear" is essential because it directs the patient to use the drops specifically for ear-related conditions. Providing clear instructions helps to avoid any confusion about how to properly use the medication, ensuring that it is used safely and effectively.

Other labels, such as "For oral use only" or "For the eye," would lead to misuse of the medication, given that the prescription clearly specifies ear drops. Additionally, "Shake well" may be relevant for some liquid medications but does not address the specific route of administration required in this instance. Thus, "For the ear" is the most appropriate and clear label to ensure proper use.