I will never take this drug again - I was prescribed it for bronchitis along with prednisone. I have severe asthma and have been taking prednisone for short periods without problems since childhood. My first and only dose caused hives, itching, dry heaves, and severe chest pain and heart palpitations. Ended up going to the hospital by ambulance - Where I was ignored for 5 hours - apparently they thought I was seeking narcotics (overheard one of the nurses) for the chest pain. Ridiculous, I don't suppose my body covered with hives was faked too - I know that some people abuse medications but I am not one of them!!! I didn't even ask for pain meds. Anyway, I still feel pretty shaky today...but relieved that they gave me a different antibiotic - Hopefully the prednisone will help with the allergic reaction. Good luck to all of you and get well!