Dog · Canis lupus familiaris · typical adult weight 2.00–80.00 kg
Dextromethorphan is used in dog for Mild cough suppression. Routes documented in dog: PO. A typical adult dog weighs 2.00–80.00 kg. ExoticRx lists 1 cited dose rule for Dextromethorphan in dog, drawn from published veterinary references. Verify against current literature before clinical use.
Trade names: Robitussin DM
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 1–2 mg/kg | q6-8h | Short-term | Mild cough suppression | Weak | Papich Handbook of Veterinary Drugs, 5th 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.
Suppresses cough reflex by acting on the cough center in the medulla. NMDA receptor antagonist at higher doses.
OTC availability. Limited efficacy in veterinary patients. Ensure product does not contain xylitol, acetaminophen, or pseudoephedrine. Serotonin syndrome risk with other serotonergic drugs.
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? Dextromethorphan 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.