I was prescribed Lialda a week ago Monday (it is now Friday). It was a week to pretty much the exact hour that I started having side effects. The first week it was like nothing had changed. Then on Monday I had one round of diarrhea. On Tuesday I had diarrhea all day (10-20 times per day) plus fever, chills, and muscle aches. We thought I had the flu. On Wednesday I had the same symptoms plus I started throwing up. I had absolutely no appetite and was severely dehydrated, but it was difficult to... drink water because if I had one sip too many I would throw up. Then on Thursday I felt slightly better. I had a lower fever, but my diarrhea had become bloody. No longer thinking it was the flu, I called my doctor and told him about the bloody diarrhea to which he asked if I was also experiencing abdominal pain, fever, or chills. Bingo. I went to my primary care physician today as ordered where he told me to get off lialda and he prescribed a corticosteroid. I also had to go do a stool sample so they can try and find out what went wrong. I am SO happy I can stop taking it, but I'm not sure how long it will take before I no longer have these side effects. I just feel bad because it cost $40 with insurance and I only had 11 days' worth. Read More Read Less