Cat · Felis catus · typical adult weight 2.50–7.00 kg
DL-Methionine is dosed at 200–500 mg/cat total PO q12h in cats, per Plumb's Veterinary Drug Handbook, 9th Ed. DL-Methionine is used in cats for Urinary acidification (struvite prevention). Routes documented in cats: PO. A typical adult cat weighs 2.50–7.00 kg. ExoticRx lists 1 cited dose rule for DL-Methionine in cats, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Methio-Form, Ammonil
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 200–500 mg/cat totalmax 500 mg total | q12h | Long-term maintenance; monitor urine pH (target 6.0-6.5) | Urinary acidification (struvite prevention) | Moderate | Plumb's Veterinary Drug Handbook, 9th Ed |
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Essential amino acid metabolized to sulfuric acid, lowering urine pH. Acidic urine inhibits struvite crystal formation and some bacterial growth.
Contraindicated in cats with hepatic lipidosis or metabolic acidosis. Monitor urine pH regularly. Overdose can cause Heinz body anemia in cats.
Species-specific contraindications and adverse-reaction reports for cats may differ from canine / feline reference data — consult the primary citations listed with each rule.
DL-Methionine dose range in cats, with cited source references: PO 200–500 mg/cat total q12h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for DL-Methionine in cats: PO.
Cited course lengths for DL-Methionine in cats include: Long-term maintenance; monitor urine pH (target 6.0-6.5). Duration depends on the indication — match it to the specific dose rule in the table above.
DL-Methionine is indicated in cats for: Urinary acidification (struvite prevention).
These are general warnings for DL-Methionine across species; consult the cat dosing table above for species-specific guidance. Contraindicated in cats with hepatic lipidosis or metabolic acidosis. Monitor urine pH regularly. Overdose can cause Heinz body anemia in cats.
Why a species-specific page? DL-Methionine pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in cats — 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.