Dog · Canis lupus familiaris · typical adult weight 2.00–80.00 kg
Clemastine is dosed at 0.05–0.1 mg/kg PO q12h in dogs, per Miller WH, Scott DW, Wellington JR. A clinical-trial on the efficacy of clemastine in the management of allergic pruritus in dogs. Canadian Veterinary Journal-Revue Veterinaire Canadienne. 1993;34:25-27. PMID: 17424141 — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.307 (2026-08-01).. Clemastine is used in dogs for Atopic dermatitis / allergic rhinitis. Routes documented in dogs: PO. A typical adult dog weighs 2.00–80.00 kg. ExoticRx lists 1 cited dose rule for Clemastine in dogs, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Tavist, Dayhist
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 0.05–0.1 mg/kg | q12h | Long-term for allergy management; reassess seasonally | Atopic dermatitis / allergic rhinitis | Moderate | Miller WH, Scott DW, Wellington JR. A clinical-trial on the efficacy of clemastine in the management of allergic pruritus in dogs. Canadian Veterinary Journal-Revue Veterinaire Canadienne. 1993;34:25-27. PMID: 17424141 — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.307 (2026-08-01). |
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These ranges are per kg. Enter your dog's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Competitive H1 histamine receptor antagonist that blocks histamine-mediated allergic responses including pruritus, urticaria, and rhinitis.
Sedation is common. Anticholinergic effects (dry mouth, urinary retention). May be more effective than diphenhydramine for canine atopic dermatitis.
Species-specific contraindications and adverse-reaction reports for dogs may differ from canine / feline reference data — consult the primary citations listed with each rule.
Clemastine dose range in dogs, with cited source references: PO 0.05–0.1 mg/kg q12h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Clemastine in dogs: PO.
Cited course lengths for Clemastine in dogs include: Long-term for allergy management; reassess seasonally. Duration depends on the indication — match it to the specific dose rule in the table above.
Clemastine is indicated in dogs for: Atopic dermatitis / allergic rhinitis.
These are general warnings for Clemastine across species; consult the dog dosing table above for species-specific guidance. Sedation is common. Anticholinergic effects (dry mouth, urinary retention). May be more effective than diphenhydramine for canine atopic dermatitis.
Why a species-specific page? Clemastine 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.