Dextromethorphan is a cough suppressant used to relieve a dry, tickly cough. It is a common ingredient in cough medicines.

What Dextromethorphan Is Used For

Dry, tickly cough
Cough that disturbs sleep

Common Side Effects

Drowsiness
Dizziness
Mild nausea

Precautions

Dextromethorphan suits a dry cough, not a chesty cough with phlegm, which needs a different type of medicine. Do not take it with other medicines containing the same ingredient. See a doctor if a cough lasts more than a couple of weeks, brings up blood, or comes with high fever or breathlessness.

This page is general information only. It is not a substitute for advice from your doctor or pharmacist, and it does not include dosage. Always follow the directions given to you and read the leaflet inside the pack.