I went to the doctor for a mild uti. I'm on the 2nd day of cipro (ciprofloxacin) now and it's less painful to urinate, but why am I experiencing abdominal cramps?

Common side effect. Nausea and abdominal pain are common side effects of taking cipro (ciprofloxacin). You should call you doctor and tell them about this . Ask your doctor if you should keep taking your Cipro (ciprofloxacin) or whether you need to switch to a different antibiotic.