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Natamycin Ophthalmic

Natacyn

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Sourced from published veterinary references. Awaiting credentialed clinical reviewer — our editorial process.

Drug Class

Ophthalmic

Routes

Ophthalmic

Indications

Fungal keratitis

Mechanism of Action

Polyene antifungal binding ergosterol in fungal cell membranes. First-line for fungal keratitis, especially Fusarium and Aspergillus.

Side effects & warnings

Shake well. Poor corneal penetration — effective mainly for superficial fungal keratitis. Equine fungal keratitis common indication. Expensive.

Species with Natamycin Ophthalmic dosing data (1 dose rule)

Dog (Domestic)

Species references:All Dog (Domestic) drugs

Evidence levels across 1 dose rule

Moderate×1

Each ExoticRx dose rule is graded by the strength of its primary evidence — see the editorial process.

Backed by a published source

  • · Plumb's Veterinary Drug Handbook, 9th Ed

Sample dosing (1 of 1 cited rule)

A dog/cat sample is shown here. Cited dosing for all 1 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.

SpeciesRouteDoseFrequencyEvidenceSource
Dog (Domestic)Ophthalmic0 mg/kgq2-4h initially, then q6hModeratePlumb's Veterinary Drug Handbook, 9th Ed

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Calculate Dosage for Natamycin Ophthalmic