Cat · Felis catus · typical adult weight 2.50–7.00 kg
Metoprolol is dosed at 2–15 mg/cat (NOT mg/kg) PO q8h in cats, per Plumb's Veterinary Drug Handbook, 10th ed (2023, held copy; the original seed cited the 9th, which was never consulted) — corpus p.899 (plumb), located 2026-08-05 by exact figure+drug match (unique, drug within 120 chars). — located 2026-08-05 in Plumb's 10th ed, Metoprolol monograph, printed p.870-872; the earlier note claiming no held source contained this figure was wrong and has been removed. — SOURCE EDITION: Plumb's Veterinary Drug Handbook — ISBN 9781394172207, https://openlibrary.org/isbn/9781394172207. Metoprolol is used in cats for Hypertrophic cardiomyopathy. Routes documented in cats: PO. A typical adult cat weighs 2.50–7.00 kg. ExoticRx lists 1 cited dose rule for Metoprolol in cats, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Lopressor, Toprol-XL
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 2–15 mg/cat (NOT mg/kg) | q8h | Long-term; titrate based on HR response | Hypertrophic cardiomyopathy | Moderate | Plumb's Veterinary Drug Handbook, 10th ed (2023, held copy; the original seed cited the 9th, which was never consulted) — corpus p.899 (plumb), located 2026-08-05 by exact figure+drug match (unique, drug within 120 chars). — located 2026-08-05 in Plumb's 10th ed, Metoprolol monograph, printed p.870-872; the earlier note claiming no held source contained this figure was wrong and has been removed. — SOURCE EDITION: Plumb's Veterinary Drug Handbook — ISBN 9781394172207, https://openlibrary.org/isbn/9781394172207 |
Every held source for this drug and species, as printed. Where they differ, both are shown — the choice is yours, not ours.
| Dose (mg/animal) | Route | Source | As printed |
|---|---|---|---|
| 5–50 | PO | Papich Saunders Handbook of Veterinary Drugs, 4th edp.551 | • 5-50 mg/dog (0.5-1 mg/kg) q8h PO. • 2-15 mg/cat q8h PO. |
| 2–15 | PO | Papich Saunders Handbook of Veterinary Drugs, 4th edp.551 | • 5-50 mg/dog (0.5-1 mg/kg) q8h PO. • 2-15 mg/cat q8h PO. |
| Dose (mg/kg) | Route | Source | As printed |
|---|---|---|---|
| 0.5–1 | PO | Papich Saunders Handbook of Veterinary Drugs, 4th edp.551 | • 5-50 mg/dog (0.5-1 mg/kg) q8h PO. • 2-15 mg/cat q8h PO. |
Figures are transcribed from the cited page or table of each held edition and are shown for reference only. They are not dose recommendations, they do not feed the calculator, and none has been reviewed by a veterinarian.
Need the exact dose for your patient?
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.
Cardioselective beta-1 adrenergic receptor antagonist that reduces heart rate, contractility, and AV conduction.
Avoid abrupt withdrawal. May worsen heart failure initially. Use cautiously in diabetic patients as it may mask hypoglycemic signs.
Species-specific contraindications and adverse-reaction reports for cats may differ from canine / feline reference data — consult the primary citations listed with each rule.
Metoprolol dose range in cats, with cited source references: PO 2–15 mg/cat (NOT mg/kg) q8h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Metoprolol in cats: PO.
Cited course lengths for Metoprolol in cats include: Long-term; titrate based on HR response. Duration depends on the indication — match it to the specific dose rule in the table above.
Metoprolol is indicated in cats for: Hypertrophic cardiomyopathy.
These are general warnings for Metoprolol across species; consult the cat dosing table above for species-specific guidance. Avoid abrupt withdrawal. May worsen heart failure initially. Use cautiously in diabetic patients as it may mask hypoglycemic signs.
Why a species-specific page? Metoprolol 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.