ExoticRx · exoticrx.com/drugs/dl-methionine
US brand names:Methio-Form, Ammonil
DL-Methionine is dosed at 200–500 mg/cat total PO q12h in cats, per Plumb's Veterinary Drug Handbook, 10th ed (2023, held copy; the original seed cited the 9th, which was never consulted) — Plumb's 10th ed (held) printed p.852, Methionine monograph spanning p.852-853; page located 2026-08-05 from the book's own running heads, verified to name the drug in its body text. — SOURCE EDITION: Plumb's Veterinary Drug Handbook — ISBN 9781394172207, https://openlibrary.org/isbn/9781394172207. Verify against current literature before clinical use.
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 references:All Cat (Domestic) drugs
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| Species | Route | Dose | Frequency | Evidence | Source |
|---|---|---|---|---|---|
| Cat (Domestic) | PO | 200–500 mg/cat total | q12h | Moderate | Plumb's Veterinary Drug Handbook, 10th ed (2023, held copy; the original seed cited the 9th, which was never consulted) — Plumb's 10th ed (held) printed p.852, Methionine monograph spanning p.852-853; page located 2026-08-05 from the book's own running heads, verified to name the drug in its body text. — SOURCE EDITION: Plumb's Veterinary Drug Handbook — ISBN 9781394172207, https://openlibrary.org/isbn/9781394172207 |
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