Cough syrup containing dextromethorphan and codeine is a common medication used to treat sore throats. It combines the effects of two active ingredients: both dextromethorphan and codeine. Dextromethorphan works by reducing the urge to cough. Codeine, on the other hand, is an opioid that acts as both a cough suppressant and a sedative. It's importa… Read More