3 mg/ml + 10 mg/ml + 0.9 mg/ml, ear drops suspension, for dogs
Assessed clinical scopeDog · Label-concordant treatment of canine otitis externa caused by marbofloxacin-susceptible bacteria and clotrimazole-susceptible fungi, especially Malassezia pachydermatis, with concurrent control of inflammation · Into the ear
Care settingVeterinary diagnosis and selection after otoscopy and cytology; outpatient administration after cleaning and drying, with day-7 veterinary reassessment and investigation of the underlying cause.
vetman score
7.8/10
Good
Evidence confidence: High
Georgia: No · Verified on 15 Oct 2026
A good, evidence-supported once-daily reference option for correctly diagnosed mixed bacterial/fungal canine otitis externa. Its fluoroquinolone component prevents routine first-line use: confirm an intact tympanum, base selection on cytology and susceptibility context, and investigate the underlying disease.
Regulatory and scientific credibility9.0/10
Aurizon is the long-established reference product with current exact EU/EEA and GB veterinary authorisations, a current regulator-hosted SPC, post-authorisation history and direct comparative trials. It is not registered in the checked Georgian or US registers.
Clinical efficacy7.5/10
A 140-dog phase III comparison found the marbofloxacin/clotrimazole/dexamethasone suspension equivalent to an established comparator, with a 58.3% cure rate and advantages in pain, discharge, odour and day-14 assessment. A bilateral Malassezia study also found greater improvement in yeast count, erythema, cerumen and pruritus than antifungal monotherapy. Benefit depends on matching cytology/pathogen susceptibility and addressing the primary cause.
Safety and tolerability7.0/10
Topical exposure is much lower than systemic treatment, but the intact tympanic membrane must be confirmed. Rare mostly transient deafness, local irritation and corticosteroid-related skin thinning, delayed healing, laboratory changes or adrenal suppression are possible; avoid pregnancy/lactation and unnecessary use in growing dogs.
Clinical practicality7.5/10
Ten drops once daily for 7-14 days is simpler than twice-daily alternatives, and the current packs provide one cannula per intended patient. The ear must still be examined, cleaned and dried, the suspension shaken and massaged in, and continuation beyond day 7 requires veterinary reassessment; in-use shelf life is two months.
Full-course cost-effectiveness-
Price was not assessed and is excluded from the overall score.
Important safety and use flags
- Perform otoscopy and verify an intact tympanic membrane before every course. Do not use with a perforated or unvisualised tympanum; stop and reassess urgently for head tilt, nystagmus, ataxia, hearing change or other vestibular signs.
- Cytology is required in every otitis externa case and should be repeated at recheck. Sample before cleaning; identify and manage allergy, foreign body, parasites, conformation, endocrine disease, otitis media or another primary/perpetuating cause rather than repeatedly suppressing secondary infection.
- Marbofloxacin is an EMA AMEG Category B fluoroquinolone. Do not use this combination prophylactically or as a routine first choice; use a lower-category topical option when likely effective and document why a fluoroquinolone is required. Culture and susceptibility are especially important with rods, chronic/recurrent disease or poor response.
- Do not use when resistance to marbofloxacin or clotrimazole is known, or with hypersensitivity to fluoroquinolones, azole antifungals, corticosteroids or excipients. Failure despite correct administration requires diagnosis and susceptibility review, not automatic repetition or prolongation.
- Avoid use in young growing dogs unless the exceptional need clearly outweighs the risk. Quinolones are associated with weight-bearing cartilage injury and arthropathy in immature animals.
- Do not use during pregnancy or lactation. Record reproductive status before treatment and choose a suitable alternative for pregnant, breeding or nursing animals.
- Clean and dry the external canal before dosing, shake the suspension as directed, instil exactly ten drops once daily and massage the ear base gently. Reassess at day 7 before extending to 14 days; use a separate cannula/dropper for each dog and do not continue beyond the labelled course.
- Rare, usually transient deafness is reported, mainly in older dogs. Establish baseline hearing and neurologic status when relevant; stop and reassess promptly for reduced hearing, pain, marked erythema, vestibular signs or worsening discharge.
- Prolonged or intensive topical corticosteroid exposure can cause skin thinning, delayed healing, biochemical/haematological changes and adrenal suppression. Avoid duplicate otic/systemic corticosteroids without review and investigate persistent inflammation rather than extending treatment.
- Avoid skin and eye contact, wash hands after administration and keep the applicator uncontaminated. People hypersensitive to fluoroquinolones, azole antifungals or corticosteroids should avoid handling; seek medical advice after accidental ingestion or persistent exposure symptoms.
Assessment sources+