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Mometamax Otic Suspension for Dogs

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Prescription Required

Merck Animal Health SKU: 185393

Size: 7.5-g

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Mometamax Otic Suspension for Dogs

Fast-Acting Ear Infection Treatment

Mometamax Otic Suspension is a prescription ear medication specifically formulated for dogs suffering from otitis externa—a common inflammation of the outer ear canal caused by bacterial or fungal infections. This broad-spectrum topical otic treatment combines three powerful active ingredients: mometasone furoate (a corticosteroid), gentamicin sulfate (an antibiotic), and clotrimazole (an antifungal). Together, they target inflammation, bacteria, and yeast—the three primary culprits behind painful ear infections in dogs.

Used as directed, Mometamax provides rapid relief from symptoms such as:

  • Ear discharge
  • Swelling
  • Redness
  • Scratching and head shaking
  • Foul odor from ears

Mometamax is veterinarian-recommended for both acute and chronic ear infections, especially those involving Malassezia pachydermatis (yeast) or Pseudomonas aeruginosa (bacteria).

Prescription items are NON-RETURNABLE and NON-REFUNDABLE.

NOTE: For generic medications, the product image shown may not reflect the actual item received. Generic medications can vary in size, color, and shape between orders depending on the manufacturer. Additionally, your medication may arrive packaged in a HardyPaw Pharmacy vial.

What Are the Benefits of Mometamax Otic Suspension for Dogs?

Mometamax is more than just a standard otic treatment. Here's how it excels:

  • Triple-action formula: Combats fungal (clotrimazole), bacterial (gentamicin), and inflammatory (mometasone) agents in a single dose.
  • Once-daily application: Convenient treatment routine for pet parents and stress-free for dogs.
  • Reduces inflammation fast: Thanks to the potent corticosteroid mometasone, inflammation subsides quickly.
  • Vet-trusted and clinically proven: Manufactured by Merck Animal Health and widely recommended for canine otitis externa.
  • Minimizes pain and discomfort: Rapid symptom relief restores comfort and prevents infection progression.
  • Safe for prolonged use: When used under veterinary guidance, it is safe even for chronic otitis cases.

Available Sizes of Mometamax Otic Suspension for Dogs

Mometamax comes in a variety of sizes to suit your pet's treatment duration and needs. Whether you're managing a single mild infection or chronic recurring ear issues, there's a size that fits your prescription:

Size

Ideal For

7.5 g

Small breeds or short-term treatment

15 g

Medium-sized dogs or moderate infections

30 g

Larger breeds or extended use

215 g

Multi-dog households or veterinary clinics

🛒 Tip: Always choose the size recommended by your veterinarian based on the severity of infection and duration of treatment. For households with multiple dogs prone to infections, the 215 g size offers excellent value.

Who Should Use Mometamax Otic Suspension for Dogs?

Ideal for dogs with:

  • Chronic or recurring ear infections
  • Allergic otitis or seasonal allergies affecting ears
  • Smelly or waxy ears due to yeast or bacterial overgrowth
  • Redness, inflammation, or discomfort in ears

How to Use Mometamax Otic Suspension for Dogs? (Dosage and Administration)

Always consult your veterinarian for exact dosage instructions depending on your pet's condition. General guidelines include:

Dog Weight

Recommended Dosage

Under 30 lbs

4 drops into affected ear(s) once daily

Over 30 lbs

8 drops into affected ear(s) once daily

Instructions:

  • Shake the bottle well before use.
  • Clean the ear canal of debris prior to application.
  • Apply drops into the external ear canal.
  • Gently massage the base of the ear to distribute medication.

Treatment Duration: Typically 7 days or as prescribed by your veterinarian.

What Are the Active Ingredients in Mometamax?

Ingredient

Purpose

Gentamicin sulfate

Broad-spectrum antibiotic (targets bacteria)

Clotrimazole

Antifungal agent (treats yeast)

Mometasone furoate

Anti-inflammatory corticosteroid

These components act synergistically to resolve infections and relieve symptoms efficiently.

What Are the Possible Side Effects of Mometamax for Dogs?

While Mometamax is generally safe when used as prescribed, some dogs may experience:

  • Temporary hearing loss (particularly in geriatric dogs)
  • Redness or irritation at application site
  • Sensitivity or allergic reactions (rare)

🩺 Ototoxicity Warning: Prolonged use or use in pets with ruptured eardrums can risk inner ear damage. Always perform otoscopic examination before starting treatment.

What Precautions Should I Follow When Using Mometamax?

  • Not for human use; wear gloves during application if needed.
  • Avoid use in pregnant or lactating dogs unless directed by your vet.
  • Do not use if tympanic membrane (eardrum) is ruptured.
  • Not suitable for cats—Mometamax is specifically formulated for dogs.
  • Discontinue use if hearing loss or imbalance is observed.

Shipping & Returns

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Refund policy: If you face any issue with our product and want to return it, read our refund policy carefully.

Mometamax for Dogs FAQs 

What is Mometamax used for in dogs?

Mometamax treats outer ear infections (otitis externa) in dogs caused by yeast, bacteria, and inflammation. It alleviates symptoms like redness, swelling, discharge, and itching.

Can I use Mometamax for cat ear infections?

No, Mometamax is only approved for use in dogs. Cats are more sensitive to corticosteroids and otic formulations like this.

How long should I use Mometamax on my dog?

Typically, it’s prescribed for 7 days, but your vet may adjust the duration based on infection severity and response.

Can Mometamax cause hearing problems in dogs?

In rare cases, especially in older dogs or if used improperly (e.g., with ruptured eardrums), it may cause reversible hearing loss. Always follow vet instructions.

Is Mometamax safe for long-term use?

It’s safe under veterinary supervision. For chronic conditions, your vet may recommend periodic monitoring to avoid side effects.

High-Authority Resources on Key Medical Topics

  1. Otitis Externa in Dogs – Merck Veterinary Manual
  2. Mometasone Furoate – NIH PubChem
  3. Gentamicin Use in Veterinary Medicine – NCBI
  4. Clotrimazole Pharmacology – Drugs.com