Cat · Felis catus · typical adult weight 2.50–7.00 kg
Nafcillin is used in cat for Staphylococcal infections. Routes documented in cat: IV. A typical adult cat weighs 2.50–7.00 kg. ExoticRx lists 1 cited dose rule for Nafcillin in cat, drawn from published veterinary references. Verify against current literature before clinical use.
Trade names: Nallpen
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| IV | 10–22 mg/kg | q6-8h | 7-14 days | Staphylococcal infections | Weak | Plumb's Veterinary Drug Handbook, 9th Ed |
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Binds PBPs inhibiting cell wall synthesis. Resistant to staphylococcal penicillinase. Narrow gram-positive spectrum.
Phlebitis at IV site. Hepatotoxicity possible. Interstitial nephritis rare. Do not use for MRSA.
Species-specific contraindications and adverse-reaction reports for cat may differ from canine / feline reference data — consult the primary citations listed with each rule.
Why a species-specific page? Nafcillin pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in cat — the rules above are the citations specific to this species, not generic recommendations.
Sourced from published veterinary references; awaiting credentialed clinical reviewer. See our editorial process. Reference only — not veterinary advice.