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Posatex Otic Suspension for Dogs

by Merck

This item requires prescription approval.

Prescription medications are currently limited to CA residents. More states coming soon!!

Original price $38.99 - Original price $104.99
Original price
$38.99 - $104.99
Current price $38.99
Size: 7.5gm

Posatex Otic Suspension is an antibacterial, anti-inflammatory, and antifungal ear drop used to treat otitis externa in dogs.

  • Effective against a wide variety of bacteria
  • Rapidly controls inflammation and reduces discomfort, erythema, and swelling
  • Highly effective and safe for even the most stubborn cases
  • Simple once-a-day application

Consult with your veterinarian for proper dosage and course of treatment.


Do not administer orally. Immediately discontinue use of Posatex Otic Suspension if hearing loss is observed during treatment. Posatex Otic Suspension is contraindicated in dogs with known or suspected hypersensitivity to quinolones, mometasone furoate monohydrate, or posaconazole. Do not use in dogs with known tympanic perforation.


The use of Posatex Otic Suspension in dogs with perforated tympanic membranes has not been evaluated. The integrity of the tympanic membranes should be confirmed before administering this product.

Avoid prolonged or repeated use of Posatex Otic Suspension. Long-term use of topical otic corticosteroids has been associated with adrenocortical suppression and iatrogenic hyperadrenocorticism in dogs.

The safe use of Posatex Otic Suspension in dogs used for breeding purposes, during pregnancy or while lactating, has not been evaluated. The systemic administration of quinolones has been shown to produce cartilage erosions of weight bearing joints and other signs of arthropathy in immature animals of various species.

Food and Drug Interactions

Always let your veterinarian know all the medications and supplements your pet takes before starting new medication.

Human Warnings

Not for use in humans. Keep out of reach of children

Possible Side Effects

This medicine is typically well tolerated in dogs. Minor side effects can include redness or discomfort at the site of application.

In the field study, 143 dogs were treated with Posatex Otic Suspension. Of those, 1 dog with bilateral otitis externa developed hearing loss. Posatex Otic Suspension treatment was discontinued and the condition resolved after one week.

Contact your veterinarian if you believe your pet is experiencing side effects.

Product Administration


Product Form



Orbifloxacin, Mometasone Furoate Monohydrate, Posaconazole


Store at temperatures between 35.6°-86°F



Prescribing Info/Brochures