pneumonia
"I came back from Roatan with acute pneumonia and bronchitis. I was prescribed 500mg for 7 days. I am on my 3rd day and no problems, coughing went away, my lungs feel so much better. I have had no side effects so far. So I have to rate it a 9 we'll see how the other few days go.  But instead of taking it at nite I take it at 10 am every morning and absolutely no exercise and sleep well at nite. Sorry to read that others are having problems but mine is more lungs than sinuses.."