Metronidazole
"Everyone's body will react differently to meds, genetics. Just bc I had a bad experience, doesn't mean you will. Took w full stomach of bland food, 16 oz water, & took a daily probiotic. My experience w this med was horrible. I was unbearably anxious, rapid heartbeat, intense pelvic pressure, bad stomach cramping, nonstop nausea, vomiting, & explosive diarrhea. This was my 2nd time w this med,w the same bad reaction. I had to discontinue, both times. Took 3 days to start feeling better, 5-7 until normal. I'll never take this med again. I'm sure it's good for others, but nit me. I had cancer so I've taken a lot of meds. Never had to stop another med from side effects before, but I was scared to the point of going to the er. Never again."