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Otomax Ointment for Dogs: Ear Infection Guide

How this Ointment Treats Both Acute and Chronic Ear Infections in Dogs

By Team PetCareRx. May 22, 2013

Otomax Box - Ointment

indications for Otomax Ointment

Otomax Ointment, a combination antimicrobial and corticosteroid, is chiefly indicated for the treatment of acute and chronic otitis externa associated with yeast (Malassezia pachydermatis) and/or bacteria susceptible to gentamicin. The drug is also used for the treatment of fungus infection of the nasal cavity. The active ingredients in the otomax ointment- betamethasone valerate, gentamicin sulfate, and clotrimazole are effective against painful infections of the ear. Gentamicin inhibits the growth of a variety of bacteria including pseudomonas, proteus, e.coli and staphylococcus, while steroid betamethasone valerate comes with anti-itching and anti-inflammatory properties.


It is advisable not to use the medication in dogs with allergy to it or any of the individual components. Extreme caution is required when used in pregnant and geriatric animals. Avoid administering the drug to dogs with perforated eardrums and known hypersensitivity. Discontinue the use of this drug on observing hearing loss during the treatment. The active ingredient may interact with other medications, thus inform the veterinarian or pharmacist about the medications the pet is taking. Make sure to follow the treatment instructions carefully; failing to do the same could result in adverse side effects. The ear should be clean and dry before applying the medication.


The medication is FDA approved for use in dogs only. The standard dosage varies from 4 – 8 drops in the ear canal. For dogs weighing less than 30 lbs, administer 4 drops into the ear canal every 12 hours, and 8 drops into the ear canal for dogs weighing above 30 lbs. Continue the therapy for 7 consecutive days.

Side Effects

Chronic usage of the medicine may affect the functioning of adrenal glands. Individual ingredients mainly instigate side effects of this medication. In geriatric dogs, partial hearing loss is observed. Most commonly, side effects like hearing loss, head tilt or dizziness are noted.

Brand/Generic equivalents

Gentamicin Sulfate Veterinary, Betamethasone Valerate, USP and Clotrimazole, USP

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Otomax Ointment at a glance

  • 1For dogs
  • 2A steroidal, antibacterial, and antifungal
  • 3A topical medication
  • 4Treats acute and chronic ear infections associated with yeast and certain bacteria
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