Maxi/Guard Zn 4.5 Otic is the first water soluble ear soulution delivering Complexed Zinc. It is a natural complexed zinc, non-stining ear care formula for pets. It calms sensitive ears (antipruritic), helps to maintain ears after initial problems or infection are resolved.  Zn 4.5 Otic is not an ear cleanser. It encourages healing or returning the micro-environment of the ear to normality. It can be used as an adjunt to topical antibiotic or steroid therapy.