Dog · Canis lupus familiaris · typical adult weight 2.00–80.00 kg
Diltiazem is used in dog for Supraventricular tachycardia, atrial fibrillation. Routes documented in dog: PO. A typical adult dog weighs 2.00–80.00 kg. ExoticRx lists 1 cited dose rule for Diltiazem in dog, drawn from published veterinary references. Verify against current literature before clinical use.
Trade names: Cardizem, Dilacor
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 0.5–1.5 mg/kg | q8h (IR) or q12-24h (ER) | Long-term | Supraventricular tachycardia, atrial fibrillation | Strong | Plumb's Veterinary Drug Handbook, 9th Ed |
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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.
Blocks L-type calcium channels in cardiac and smooth muscle. Slows AV conduction, reduces heart rate, and reduces myocardial oxygen demand.
Monitor heart rate and blood pressure. Drug of choice for feline hypertrophic cardiomyopathy. Bradycardia, hypotension, AV block possible. Do not combine with beta-blockers without caution.
Species-specific contraindications and adverse-reaction reports for dog may differ from canine / feline reference data — consult the primary citations listed with each rule.
Why a species-specific page? Diltiazem pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in dog — 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.