sinusitis
"I had a horrible experience on cefdinir. I was prescribed it for sinusitis, 300mg twice per day for 10 days. 2 hours after the first dose I started throwing up constantly. After about 3 hours of throwing up I was feeling weak and dizzy and was in a lot of. I went to the ER and they started IV fluids for severe dehydration. That's when the diarrhea started. Worst diarrhea of my life (I have IBS so I've had some pretty bad diarrhea.) After the fluids and Zofran and dilauted and bentyl the throwing up finally stopped. The ER doc said it was because of the cefdinir. I never took a second dose. I would've rather just let the sinusitis play itself out than deal with these side effects from cefdinir. I'll never take it again."