I'm 46 and I experienced all the typical symptoms back in 2005, had a colonoscopy and was told possible Crohn's. I was given Asacol, and the symptoms went away immediately. I stopped taking the Asacol when the bottle was empty, and didn't have another issue until last year. I was officially diagnosed with UC in March 2012. I was again given Asacol, and expected the symptoms to disappear...not this time.