BEIJING, July 7 (Xinhuanet) -- Two ingredients
commonly used in cough syrup are no better than sugar water in suppressing
night-time coughing in children.
The two ingredients are dextromethorphan, often
listed on labels as "DM", and diphenhydramine, an antihistamine, CRIENGLISH.com
The former is the most common non-prescription cough
suppressant on the US market and commonly abused by adolescents who try to get
high on cough medicine.
Researcher found that commercial preparations or an
inert placebo can bring the same effect on easing the patients' symptoms during
the night, while the placebo is less poisonous.
The findings were based on 100 children aged two to
18 with upper respiratory infections.