When labeling homemade otitis externa medications, which detail must be included?

When labeling homemade otitis externa medications, the inclusion of the common name and quantity of active ingredients is essential for several reasons. First, this information ensures clarity for both the veterinarian and the pet owner regarding what specific ingredients are contained in the medication. Knowing the common names of active ingredients helps in identifying the therapeutic properties and potential side effects of the medication, which is crucial for safe administration.

Additionally, specifying the quantity of active ingredients aids in dosage accuracy. This is vital to prevent potential overdoses or underdoses, which could lead to ineffective treatment or worsen the condition. Clear labeling with this information improves accountability and allows for better patient education.

The other options lack the comprehensive information necessary for effective medication management. While the manufacturer's name might be relevant for commercial products, it is less applicable for homemade preparations. An expiration date is important, but it does not provide detail on the actual ingredients that are critical for treatment decisions. Prescriber’s initials offer a form of authorization but do not convey the vital information about the medication's composition that is necessary for safe and effective use.