Which auxiliary label should accompany a medication that requires shaking?

The auxiliary label that should accompany a medication requiring shaking is "Shake well." This label provides essential guidance to patients, indicating that the medication may settle or separate during storage and that its effectiveness could be compromised if not properly mixed before use. By shaking the medication, patients ensure that the components are evenly distributed, allowing for the correct dosage and consistent efficacy.

This instruction is particularly important for liquid medications, including suspensions, where active ingredients may not remain uniformly suspended without agitation. Utilizing this label helps ensure patient safety and maximizes the therapeutic benefits of the medication.