Pet ear antibiotic Mometamax

Most dogs with ear infections often have a combination of bacteria and/or yeast

In this post I will address some of the common questions asked about using the commonly prescribed topical ear antibiotic and antifungal product, Mometamax. Given that most dogs with ear infections often have a combination of bacteria and/or yeast, this product is one of the most versatile products available in the veterinary pharmacy and available by prescription from 1800PetMeds. The combination of ingredients not only decreases the underlying allergic reaction, but the overgrowth of various bacteria and yeast involved in the majority of canine or feline ear infections.

Although it is not labeled for use in cats, many veterinarians have prescribed this product widely to cats without any ill side effects. While it won’t kill ear mites, this product can also be used topically for yeast, local ringworm or bacterial infections. One of the biggest advantages over its nearly identical sister product Otomax, is that Mometamax can be used only once daily, thus increasing client compliance. My two favorite topical ear medicines in our pets include Mometamax and Zymox.

When used appropriately this product can be used for most common ear infections in our pets, and its long shelf life of at least a year in most cases, makes it a valuable part of the medicine cabinet in those pets with recurrent ear inflammations or infections.While Mometamax is a prescription topical antifungal and antibacterial, Zymox is a nonprescription topical which in my experience and opinion is as equally effective through a different mechanism in killing yeast and bacteria in the canine or feline ear canal. Side effects of Mometamax are rare, with the most serious being rare deafness in pets whose ear drum is not intact (this is best determined by veterinary exam of the ear canal before starting this medication), allergic reaction consisting of increased redness, discomfort and ear itching, and even more rare facial swelling.

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208 Comments

  1. My 14 yr old Cairn terrier was prescribed Mometamax last Tuesday for an ear infection, and he was deaf by Friday. We are in the process of trying to get some hearing to return with no progress. There is absolutely no excuse why this happened. I am devastated as I’m sure many other pet owners who love their pets are from this drug. This needs to be addressed immediately!

  2. My 13 year old Westie was prescribed this for an ear infection. They said the left was bad and the right had a little. Now she’s deaf in both ears. Vet says it’s old age, I don’t believe it. She was fine before the medicine. Merck has a case opened on it, but I’m sure nothing will come of it. I’m surprised vets prescribe this stuff! It’s heartbreaking!

  3. i think great post. thank you

  4. My 9 year old German Shepard rescue is completely DEAF after using this product too. The vet never told me. This is just awful for all of these pups and pet parents. UNACCEPTABLE!!! Please add me to the list. Imagine how many countless others this has happened to and it has not been reported!

  5. My little yorkie was given this Monday for a yeast infection in his ears, within two days he is completely deaf. DO not use this medication!! I am so very upset I didn’t get this warning by my vet. I am just beside myself!

  6. After two days on this medication, my 11 year Cane Corso I became totally deaf. I called the vet and he told me to discontinue use and flush ears with ear cleaning solution. He said it should be temporary. We are hoping and praying. It’s been 5 days from when we stopped the medication and there’s been no change to his hearing. Is there anything I can do to get the hearing back?

  7. Hi Laura. I’m sorry about your dog’s experience with this medication. We always recommend you consult with your veterinarian, but feel free to use our Ask the Vet form to post your question. Wishing the very best for your dog.
    ~ Abby, PetMeds Pro

  8. Wow. I can’t believe what I’m reading! My dog was put on this on Friday morning and by Sunday his dead . I’m devastated. I’ve been told to just pray that the hearing comes back within 45 days. What are we to do?

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