Cat · Felis catus · typical adult weight 2.50–7.00 kg
Chlorpheniramine is used in cat for Allergic pruritus, eosinophilic granuloma adjunct. Routes documented in cat: PO. A typical adult cat weighs 2.50–7.00 kg. ExoticRx lists 1 cited dose rule for Chlorpheniramine in cat, drawn from published veterinary references. Verify against current literature before clinical use.
Trade names: Chlor-Trimeton
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 1–2 mg per cat | q12h | Long-term | Allergic pruritus, eosinophilic granuloma adjunct | Moderate | Plumb's Veterinary Drug Handbook, 9th Ed |
Absolute dose ceiling, regardless of body weight: 4 mg total (PO).
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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.
Competitive H1 receptor antagonist. Blocks histamine-mediated allergic responses. Also has mild anticholinergic and sedative properties.
Most commonly used antihistamine in cats. Mild sedation. Ensure product does not contain decongestants. Limited efficacy for pruritus but safe and well-tolerated.
Species-specific contraindications and adverse-reaction reports for cat may differ from canine / feline reference data — consult the primary citations listed with each rule.
Why a species-specific page? Chlorpheniramine pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in cat — 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.