Coughing is one of the main symptoms of COVID-19. So it’s not surprising that people with the illness are using cough syrup.
That could be a bad idea.
New research shows that dextromethorphan, a common active ingredient in dozens of over-the-counter cough syrups, capsules, and lozenges appeared to boost replication of the coronavirus when tested under laboratory conditions.
This doesn’t necessarily mean it does the same thing in the human body.