ExoticRx · exoticrx.com/drugs/dextromethorphan
Robitussin DM(veterinary)
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.
Each ExoticRx dose rule is graded by the strength of its primary evidence — see the editorial process.
Free-tier preview — dog and cat dosing. Pro and Student unlock all 1 species including reptiles, birds, pocket pets, livestock, and equine.
| Species | Route | Dose | Frequency | Evidence | Source |
|---|---|---|---|---|---|
| Dog (Domestic) | PO | 1–2 mg/kg | q6-8h | Weak | Papich Handbook of Veterinary Drugs, 5th Ed |
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View PlansSource citations and evidence levels available on the live page. Reference only — verify against current literature before clinical use.