Cat · Felis catus · typical adult weight 2.50–7.00 kg
Rifampin is used in cat for Mycobacterial infections (combination). Routes documented in cat: PO. A typical adult cat weighs 2.50–7.00 kg. ExoticRx lists 1 cited dose rule for Rifampin in cat, drawn from published veterinary references. Verify against current literature before clinical use.
Trade names: Rifadin
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 10–15 mg/kg | q24h | Months (per mycobacterial protocol) | Mycobacterial infections (combination) | Weak | BSAVA Small Animal Formulary, 10th Ed |
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These ranges are per kg. Enter your cat's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Inhibits bacterial DNA-dependent RNA polymerase, blocking RNA synthesis. Excellent intracellular penetration.
Always use in combination (rapid resistance when used alone). Potent CYP inducer (many drug interactions). Orange/red discoloration of urine, tears. Hepatotoxic — monitor liver enzymes.
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? Rifampin 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.