Friday, January 17, 2014
Short answer: No
In 2006, the nation's chest physicians agreed that the majority of over-the-counter cough medicines don't actually work. These colorful syrups typically contain doses of codeine and dextromethorphan that are too small to be effective.
Only cough suppressants that contain older antihistamines seem to relieve coughs. That includes brompheniramine, an active ingredient in Dimetapp