Rapid Rx Quiz: Cough Suppressants (Antitussives)

Mary L. Windle, PharmD


April 19, 2023

Dextromethorphan toxicity is associated with head, eyes, ears, nose, and throat signs such as nystagmus and mydriasis. General symptoms include altered mental status, diaphoresis, and hyperthermia. Cardiovascular signs include hypertension and tachycardia. Neurologic signs include ataxia, confusion, coma, hallucination, mild to severe agitation, muscular rigidity, and seizures. Respiratory symptoms include respiratory depression.

Learn more about the presentation of cough, cold, and allergy preparation toxicity.


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