rifaximin 10 mg/ml + colistin sulfate 200000 IU/ml + miconazole 17.4 mg/ml + carbaryl 10 mg/ml + triamcinolone 0.908 mg/ml, ear drops for dogs and cats
Assessed clinical scopeDog · Complete authorised canine scope: external otitis associated with susceptible bacteria, fungi/yeasts, ear mites or inflammation · Into the ear
Care settingVeterinary otoscopy/cytology-led treatment with careful cleaning, intact-tympanum confirmation, owner twice-daily application and clinical/cytologic recheck
vetman score
6.1/10
Situational / acceptable
Evidence confidence: Medium
Georgia: Yes, veterinary · № 1-03/44 · Verified on 23 Oct 2026
A situational five-active canine otic option when otoscopy and cytology genuinely support its relevant antibacterial, antifungal, acaricidal and steroid components. It should not be a default for every inflamed ear; no direct modern exact-product outcome programme was found, and tympanic, carbaryl, steroid and stewardship risks require controls.
Regulatory and scientific credibility8.5/10
Exact rifaximin 10 mg/ml, colistin sulfate 200,000 IU/ml, miconazole 17.4 mg/ml, carbaryl 10 mg/ml and triamcinolone 0.908 mg/ml identity, dog/cat route, regimen and perforation/handler restrictions are transparent in current Georgian and multiple current EU regulator records. Credibility is reduced by legacy development, no public modern exact-product assessment or quantified adverse-event/outcome dossier, and a broad inflammation-only label scope that conflicts with current stewardship.
Clinical efficacy6.0/10
Antibacterial, antifungal, acaricidal and anti-inflammatory components are mechanistically plausible for mixed canine otitis, and topical combination therapy is established when cytology supports it. No controlled exact-product outcome study was found, each component is not needed in every ear, and inflammation-only, resistant-rod, primary allergic or middle-ear disease is not solved by blanket five-active exposure.
Safety and tolerability4.5/10
The label reports no adverse reactions and permits reproduction, but modern quantified exact safety evidence is absent. Perforation is contraindicated; colistin/polymyxin-class ototoxicity concern, carbaryl cholinesterase inhibition/dermal absorption, topical steroid effects, contact irritation and dual-antibiotic selection pressure require active controls.
Clinical practicality5.0/10
A fixed 1-2 ml per ear avoids weight calculation and massage aids distribution. Twice-daily shaking, careful cleaning, relatively large oily volume for 7-10 days, restraint/handling, gloves, tympanum examination, cytology and recheck are substantial burdens; canal size makes the twofold volume range a clinician decision rather than a simple owner rule.
Full-course cost-effectiveness-
Current Georgian course price was unavailable; price is excluded from the denominator.
Important safety and use flags
- Scope boundary: this canine score covers the full labelled external-otitis scope. It does not cover otitis media/interna, every inflamed ear, undiagnosed neurologic signs or use in another species.
- Examine before treating: perform otoscopy, confirm an intact tympanic membrane and obtain cytology in every case (stained dry mount plus mite wet mount as appropriate). Culture/susceptibility is important with rods, chronic/recurrent disease, prior antimicrobial exposure or poor response.
- Cause-directed care: identify allergy, foreign body, conformation, keratinisation/endocrine disease, polyp/mass, parasites or middle-ear disease. Antimicrobials treat secondary overgrowth/infection but do not correct the primary driver of recurrence.
- Exact administration: shake well, clean carefully, instil 1-2 ml into each affected external canal and massage twice daily for 7-10 days. This is a clinician-selected fixed per-ear range, not a body-weight calculator; do not place it in an unexamined/perforated ear.
- Stewardship: do not expose a cytology-negative merely inflamed ear to rifaximin, colistin and miconazole by default. At recheck, narrow/stop/switch according to clinical and cytologic response; persistent rods require culture and a documented plan rather than repeated empirical courses.
- Parasitic boundary: repeat the course after 10 days only for confirmed/suspected parasitic otitis under the label plan. Confirm Otodectes, examine/treat relevant in-contact animals and manage the environment; this repeat instruction is not for every bacterial or yeast episode.
- Tympanic/neurologic safety: stop and urgently reassess hearing loss, head tilt, nystagmus, ataxia, facial/Horner signs, severe pain or neurologic deterioration. Perforation is contraindicated and suspected middle-ear disease needs sampling/imaging/appropriate non-ototoxic care.
- Carbaryl safety: wear impermeable gloves and avoid skin/eye contact. Review organophosphates and other cholinesterase inhibitors; hypersalivation, vomiting/diarrhoea, miosis, fasciculation, weakness, dyspnoea or seizure may indicate systemic cholinergic toxicity.
- Dog safety/recheck: stop for marked irritation, worsening erythema/exudate, systemic steroid effects or hypersensitivity. Recheck clinical signs and cytology; visible improvement alone does not prove microbial resolution or control of allergic disease.
- Reproduction and handling boundary: the exact label permits pregnancy and lactation at the recommended regimen, but modern quantified exact-product safety data are limited. Prevent licking/eye exposure, wash hands after use, keep the bottle from children and dispose as veterinary waste.
Assessment sources+