bronchitis
"I took Zithromax for 5 days 250 mg.  Knocked out a horrible case of coughing and bronchitis by the time I was done, but have been experiencing diarrhea since I've been off it for the past week.  I hope this ceases soon.  I did not have the diarrhea while taking it, but I was also taking a cough syrup with codeine and as I understand it, codeine causes constipation of sorts, so maybe that's why the diarrhea started after I stopped taking the cough syrup.  No horrible coughing anymore or chest distress... just lower tract for now."