I had a lot of mucus. I took 2 regular Mucinex on Friday night. within about 30 minutes my voice was hoarse, and my throat was sore. I stopped taking those, and went back to the store to get Mucinex DM. I have not been able to talk normally since, I took the 1st Mucinex.
Mucinex works by thining the mucous. This creates a post nasal drip and coughing. That's going to give you a sore throat and hoarseness. Coughing is your bodies way of getting rid of the mucous.
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