Dog · Canis lupus familiaris · typical adult weight 2.00–80.00 kg
Mirtazapine is dosed at 0.6–1.9 mg/kg PO q24h in dogs, 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.893, Mirtazapine monograph spanning p.893-895; 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. Mirtazapine is used in dogs for Appetite stimulation, nausea. Routes documented in dogs: PO. A typical adult dog weighs 2.00–80.00 kg. ExoticRx lists 1 cited dose rule for Mirtazapine in dogs, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Remeron, Mirataz
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 0.6–1.9 mg/kg | q24h | As needed | Appetite stimulation, nausea | 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.893, Mirtazapine monograph spanning p.893-895; 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 |
Every held source for this drug and species, as printed. Where they differ, both are shown — the choice is yours, not ours.
| Dose (mg/kg) | Route | Source | As printed |
|---|---|---|---|
| 1.1–1.3 | PO | BSAVA Small Animal Formulary, 10th ed — Part A (Canine and Feline)p.286 | 1.1-1.3 mg/kg p.o. q24h |
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.
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Antagonizes presynaptic alpha-2 adrenergic autoreceptors and heteroreceptors, increasing norepinephrine and serotonin release. Potent appetite stimulant.
Mirataz (transdermal) FDA-approved for feline weight loss. Strong appetite stimulant. Sedation at low doses. Serotonin syndrome risk with other serotonergic drugs. Cats: q48-72h dosing (longer half-life).
Species-specific contraindications and adverse-reaction reports for dogs may differ from canine / feline reference data — consult the primary citations listed with each rule.
Mirtazapine dose range in dogs, with cited source references: PO 0.6–1.9 mg/kg q24h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Mirtazapine in dogs: PO.
Cited course lengths for Mirtazapine in dogs include: As needed. Duration depends on the indication — match it to the specific dose rule in the table above.
Mirtazapine is indicated in dogs for: Appetite stimulation, nausea.
These are general warnings for Mirtazapine across species; consult the dog dosing table above for species-specific guidance. Mirataz (transdermal) FDA-approved for feline weight loss. Strong appetite stimulant. Sedation at low doses. Serotonin syndrome risk with other serotonergic drugs. Cats: q48-72h dosing (longer half-life).
Why a species-specific page? Mirtazapine pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in dogs — 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.