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&#039;s when the diarrhea started. Worst diarrhea of my life (I have IBS so I&#039;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&#039;ve rather just let the sinusitis play itself out than deal with these side effects from cefdinir. I&#039;ll never take it again."