bronchitis
"I had a nasty case of bronchitis, after two weeks my cough was keeping me and my spouse awake at night. After 5 days on the Z pac, my cough was much better.
This medication has a long half life and stays in your system long after the last dose, 10 days later and I still feel it hasn't entirely left me. Still feel a little dragged out as I always do with antibiotics. Cough is almost gone, a little lingering congestion but much better. (A few years ago I didn't treat my cough and it lasted 6 months.)
 Although the directions say you can take with or without food, I read elsewhere that the medicine is absorbed better on an empty stomach. So I took my last two pills at 2:00AM long after I had eaten, and this seemed to help knock out the cough."