Dog · Canis lupus familiaris · typical adult weight 2.00–80.00 kg
Fexofenadine is dosed at 2–5 mg/kg PO q12-24h in dogs, per Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.549 (2026-08-01).. Fexofenadine is used in dogs for Allergic dermatitis / rhinitis. Routes documented in dogs: PO. A typical adult dog weighs 2.00–80.00 kg. ExoticRx lists 1 cited dose rule for Fexofenadine in dogs, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Allegra
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 2–5 mg/kg | q12-24h | Long-term; seasonal or continuous | Allergic dermatitis / rhinitis | Weak | Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.549 (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.
Active metabolite of terfenadine. Non-sedating selective peripheral H1 receptor antagonist that does not cross the blood-brain barrier significantly.
Minimal sedation. No cardiac effects (unlike terfenadine). Limited efficacy data in veterinary patients but considered safe.
Species-specific contraindications and adverse-reaction reports for dogs may differ from canine / feline reference data — consult the primary citations listed with each rule.
Fexofenadine dose range in dogs, with cited source references: PO 2–5 mg/kg q12-24h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Fexofenadine in dogs: PO.
Cited course lengths for Fexofenadine in dogs include: Long-term; seasonal or continuous. Duration depends on the indication — match it to the specific dose rule in the table above.
Fexofenadine is indicated in dogs for: Allergic dermatitis / rhinitis.
These are general warnings for Fexofenadine across species; consult the dog dosing table above for species-specific guidance. Minimal sedation. No cardiac effects (unlike terfenadine). Limited efficacy data in veterinary patients but considered safe.
Why a species-specific page? Fexofenadine 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.