Cat · Felis catus · typical adult weight 2.50–7.00 kg
Montelukast is dosed at 0.25–0.5 mg/kg PO q24h in cats, per Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.933 (2026-08-01).. Montelukast is used in cats for Feline asthma (investigational adjunct). Routes documented in cats: PO. A typical adult cat weighs 2.50–7.00 kg. ExoticRx lists 1 cited dose rule for Montelukast in cats, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Singulair
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 0.25–0.5 mg/kg | q24h | Long-term | Feline asthma (investigational adjunct) | Weak | Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.933 (2026-08-01). |
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Selective cysteinyl leukotriene receptor (CysLT1) antagonist. Blocks leukotriene-mediated bronchoconstriction, inflammation, and mucus production.
Limited veterinary evidence for efficacy in feline asthma. Well tolerated. May be useful as adjunct therapy. Hepatic metabolism.
Species-specific contraindications and adverse-reaction reports for cats may differ from canine / feline reference data — consult the primary citations listed with each rule.
Montelukast dose range in cats, with cited source references: PO 0.25–0.5 mg/kg q24h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Montelukast in cats: PO.
Cited course lengths for Montelukast in cats include: Long-term. Duration depends on the indication — match it to the specific dose rule in the table above.
Montelukast is indicated in cats for: Feline asthma (investigational adjunct).
These are general warnings for Montelukast across species; consult the cat dosing table above for species-specific guidance. Limited veterinary evidence for efficacy in feline asthma. Well tolerated. May be useful as adjunct therapy. Hepatic metabolism.
Why a species-specific page? Montelukast 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.