Equine · Equus caballus · typical adult weight 350.00–700.00 kg
Rifampin is dosed at 5–10 mg/kg PO q12h in horses, per Plumb's Veterinary Drug Handbook. Rifampin is used in horses for Rhodococcus equi (with macrolide), abscess. Routes documented in horses: PO. A typical adult horse weighs 350.00–700.00 kg. ExoticRx lists 1 cited dose rule for Rifampin in horses, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Rifadin
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 5–10 mg/kg | q12h | 4-12 weeks | Rhodococcus equi (with macrolide), abscess | Strong | Plumb's Veterinary Drug Handbook |
Need the exact dose for your patient?
These ranges are per kg. Enter your horse'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 horses may differ from canine / feline reference data — consult the primary citations listed with each rule.
Rifampin dose range in horses, with cited source references: PO 5–10 mg/kg q12h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Rifampin in horses: PO.
Cited course lengths for Rifampin in horses include: 4-12 weeks. Duration depends on the indication — match it to the specific dose rule in the table above.
Rifampin is indicated in horses for: Rhodococcus equi (with macrolide), abscess.
These are general warnings for Rifampin across species; consult the horse dosing table above for species-specific guidance. 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.
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 horses — 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.