Fast, effective relief for dogs with otitis externa
Mometamax® is the most purchased once-a-day treatment for otitis externa*
* Based on YTD August 2025 Canadian Impact Vet data
Convenient once-a-day administration for 7 days can help facilitate compliance.
of Canadian veterinarians surveyed preferred once a day administration, when given the choice between twice a day or once a day.**
of those veterinarians prefer once a day because they believe that it improves pet owner compliance.**
**Data on file. Canadian market survey completed by CommuniVET March 2024. 201 Canadian veterinarians completed the survey.
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Get in touch with your Merck Animal Health Account Manager for more information about Mometamax®.
Features & Benefits
ANTI-INFLAMMATORY ACTION MOMETASONE FUROATE MONOHYDRATE
Reduction of tissue inflammation
Mometasone rapidly controls inflammation without adrenocortical suppression1
ANTIFUNGAL ACTIVITY
CLOTRIMAZOLE
Effective against dermal infections
caused by susceptible strains of yeast (Malassezia pachydermatis)
ANTIBACTERIAL EFFECT
GENTAMICIN SULFATE
Effective against a wide variety of Gram-positive and Gram-negative bacteria.
ROD BACTERIA
Pseudomonas spp. (including P. aeruginosa), Proteus mirabilis
COCCI BACTERIA
Coagulase-positive staphylococci, Enterococcus faecalis, Beta hemolytic streptococci
Administration and Dosage
Administer once-a-day for 7 days.
The external ear canal should be cleaned
and dried before treatment.
After application, massage the base of the ear to allow the preparation to penetrate to the lower part of the ear canal.
For 7.5 g, 15 g, and 30 g bottles:
- 4 drops per ear for dogs < 15 kg
- 8 drops per ear for dogs = or > 15 kg
For 215 g bottles:
- 2 drops per ear for dogs < 15 kg
- 4 drops per ear for dogs = or > 15 kg
MOMETAMAX® Otic Suspension is available in 7.5 g, 15 g, 30 g, and 215 g plastic bottles.
= enough for 62 applications
per ear for a small dog*
= enough for 31 applications
per ear for a large dog*
= enough for 125 applications
per ear for a small dog*
= enough for 62 applications
per ear for a large dog*
= enough for 250 applications
per ear for a small dog*
= enough for 125 applications
per ear for a large dog*
*Do not exceed the recommended period of treatment or frequency of application.
When comparing a twice-a-day medication with a once-a-day medication, remember to compare the volume needed. You may need half as much to treat as many ears.
Ordering codes
| MOMETAMAX® OTIC SUSPENSION | AVP | WDDC | VP | CDMV |
|---|---|---|---|---|
| Mometamax® 7.5 g | 1782465 | 119671 | 2400500 | 124264 |
| Mometamax® 15 g | 1782462 | 119672 | 2400504 | 124265 |
| Mometamax® 30 g | 1782463 | 119673 | 2400508 | 124266 |
| Mometamax® 215 g | 1782466 | 129012 | 2400510 | 124234 |
Important Safety Information
If hypersensitivity to any of the components occurs, treatment should be discontinued and appropriate therapy instituted. Concomitant use of drugs known to induce ototoxicity should be avoided. Do not use in dogs with known perforation of eardrums. Do not use in cats. Please see the product label for additional information.
Sources
- Reeder CJ, Griffin CE, Polissar NL, et al. Comparative adrenocortical suppression in dogs with otitis externa following topical otic administration of four different corticosteroid-containing medications. Vet Ther. 2008;9:111-121.
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