cough
"Had a bad cold for a few days so I went to the doctor for a check and she prescribed me chertussin (guafenesin with codeine) to help me get some restful sleep.  Took the first 10 ml dose and 45 minutes later my heart is pounding and my face and arms feel really warm. Don't like the heart pounding and won't be taking any more of this stuff. I'll switch back to my Delsym that doesn't work quite as well but doesn't make me feel like my heart is going to explode."