intraabdominal infection
"Flagyl was prescribed to me after an appendectomy with a leaking appendix. I took 3 doses at home and the side effects started immediately and became more severe with every subsequent dose. I was dizzy to the point of having to hold on to the wall to walk. I had the worst metallic bad taste in my mouth that actually made everything taste horrible (water, juices, food etc). I was extremely nauseous to the point that I started heaving even with liquids. I had severe diarrhea as well, which I am not sure was related to Flagyl or not, but subsided once I was off that medicine. I was changed to Cypro and have been feeling much, much better with that antibiotic. In my case I will NEVER take Flagyl again, based on the severe reaction I've experienced"