I had the usual side effects: nausea, diarrhea, bad taste, etc. I wasn't able to finish the 10 day course (only 7 1/2). My biggest complaint is the bad taste and the furry yellow tongue. My doctor gave me an anti-fungal but it hasn't gone away. It has been 2 weeks since my last dose and my tongue is still yellow and furry! I am disgusted and embarrassed.