cough and nasal congestion
"This worked well for me. I had what felt like a pretty bad cold....headache, nasal and chest congestion and generally run down feeling. Stayed in bed the first day and on the second I took the prescribed dose of Mucinex D - 2 tablets at 7:30 pm.

I didn't experience the insomnia others spoke of, but maybe my perspective is different, because I KNOW that if I hadn't taken it I'd be up blowing my nose and coughing all night. Yes, I did wake up a few times more than usual, but I wasn't miserable when I did."