Mometamax (Gentamicin Sulfate, Mometasone Furoate Monohydrate, and Clotrimazole, Otic Suspension) is an otic suspension for the treatment of otitis externa in dogs caused by susceptible strains of yeast and bacteria.

(gentamicin sulfate, mometasone furoate monohydrate, clotrimazole)


Pharmaceutical Name

Gentamicin Sulfate, USP, Mometasone Furoate Monohydrate and Clotrimazole, USP Otic Suspension


Each gram of Mometamax Otic Suspension contains gentamicin sulfate, USP equivalent to 3 mg gentamicin base; mometasone furoate monohydrate equivalent to 1 mg mometasone; and 10 mg clotrimazole, USP in a mineral oil-based system containing a plasticized hydrocarbon gel.


Mometamax is indicated for the treatment of otitis externa in dogs caused by susceptible strains of yeast (Malassezia pachydermatis) and bacteria (Pseudomonas spp. incl. P. aeruginosa, coagulase positive staphylococci, Enterococcus faecalisProteus mirabilis, and beta-hemolytic streptococci.)

Features and Benefits

  • Once-a-day Treatment You Can Count On.1
  • Helps promote client compliance to ensure treatment success
  • Mometasone furoate monohydrate – Rapidly controls inflammation to reduce related pain and irritation
  • 7.7 times more potent than betamethasone.1
    • New study reports no adrenocortical suppression with topical administration.2
    • No corticosteroid-related side effects observed in canine clinical trials.1
  • Clotrimazole
  • Documented efficacy against Malassezia pachydermatis
  • Gentamicin – Broad-spectrum antibacterial efficacy.1
  • Highly active against gram-positive and gram-negative bacteria

Administration and Dosage

Administer once daily for 7 days

4 drops per ear for dogs <30 lbs

8 drops per ear for dogs = or > 30 lbs


  • Solution-like consistency for clear advantages
  • Ensures prolonged contact at the site of infection
    • Colorless solution is easy to differentiate from exudate
    • Eliminates staining
    • Hydrocarbon formulation consistency facilitates easy counting of drops for proper dosing


Mometamax Otic Suspension is available in 7.5 g, 15 g, 30 g and 215 g plastic bottles.

Fair Balance

Mometamax Otic Suspension should be discontinued if any hypersensitivity to its components occurs. Do not use in dogs with known tympanic perforation. For side effects and warnings, please see accompanying Product Information.

For additional information, please see the product label.