ExoticRx · exoticrx.com/drugs/gatifloxacin-ophthalmic
US brand names:Zymar, Zymaxid
Fourth-generation fluoroquinolone inhibiting both DNA gyrase and topoisomerase IV. Enhanced gram-positive coverage compared to earlier fluoroquinolones.
Good broad-spectrum coverage for bacterial keratitis/conjunctivitis. Well tolerated topically. Minimal systemic absorption. May be used as fortified drops.
Species references:All Cat (Domestic) drugsAll Dog (Domestic) drugs
Each ExoticRx dose rule is graded by the strength of its primary evidence — see the editorial process.
A dog/cat sample is shown here. Cited dosing for all 2 species — reptiles, birds, pocket pets, livestock, and equine — is free on the per-species pages above. Pro adds the weight-based calculator for every species.
| Species | Route | Dose | Frequency | Evidence | Source |
|---|---|---|---|---|---|
| Dog (Domestic) | TOPICAL (ophthalmic) | 4th-gen fluoroquinolone with enhanced gram-positive coverage | q2-6h (severity dependent) | Moderate | Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.1397 (2026-08-01). |
| Cat (Domestic) | TOPICAL (ophthalmic) | Well tolerated topically | q4-6h | Moderate | Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.1397 (2026-08-01). |
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