I am 25 years old and I am suffering from cough and cold for the past 4 days. My nose is all blocked and my chest is also congested. Now I have been prescribed with tussin dm. I have searched a lot and found out that it contains guaifenesin and dextromethorphan. Now I would like to know from the experts as to how this tussin dm works? Anyone has the experience of using this drug previously who would like to comment?
