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Maxi Guard Zn is an ear care solution for dogs and cats that aids in the treatment of outer ear conditions. It uses zinc, boric acid, and amino acids taurine and l-lysine to help promote a healing environment inside the ear and reduce yeast buildup. It also works as a long term maintenance solution for the prevention of recurrent ear problems and infections. Maxi Guard also helps relieve itching, inflammation, and irritations with a scent free, pH balanced formula. Maxi Guard does not contain antibiotics or steroids, and may be safely used alongside other topical treatments. Consult with your veterinarian before applying this product.

  • Helps clear and restore ear problems
  • May relieve itching, inflammation, and minor pain
  • Aids in the treatment of yeast infections
  • Contains zinc and amino acids
  • Scent free and pH balanced

You can find a package label which provides more detailed information on Maxi/Guard ZN Otic indications, forms of administration, and side effects, along with other clinical information, by following the link below:


Maxi/Guard ZN Otic Package Label*


Maxi/Guard ZN Otic package insert does not take the place of instructions from your veterinarian. Talk to your pet’s veterinarian or pharmacist if you do not understand the information provided in this document or if you have any questions about Maxi/Guard ZN Otic that calms, clears, restores and encourages natural healing of problem ears.


*This link opens in a new window.


by PowerReviews
Addison BiologicalMAXI/GUARD ZN 4.5 OTIC

(based on 1 review)

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Reviewed by 1 customer

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I will continue to buy this product


from Grants Pass Oregon

Verified Buyer

Comments about Addison Biological MAXI/GUARD ZN 4.5 OTIC:

Finally after four years of never ending ear infections I found this product. IT has saved my dog's hearing and perhaps his life. I was to the point of fearing sepsis from the prolonged infection. Now, after about four months of daily use my dog can hear. The infection was so advanced that my Yorkie was completely deaf. He would scream if I accidently touched his ears. I went to many different Vets in various states and I used everything the Veterinarians prescribed .but nothing worked. I would put 4 drops in each ear daily and gently massage the ear, as much as he could stand and then clean the dislodged infected matter from each ear daily. Sometimes I would put a little ointment on the redness to help soothe the inside of the ear but the drops worked like magic. I am still using the drops on him in a maintenance capacity. Thank you, Vet RX!

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