2 years ago, I was in a very severe flare. I ended up in the hospital for 4 days. I was already on Entocort before the hospital stay.
While in the hospital, I was given a colonoscopy, which my doctor told me it was so severe, that he wanted to kick start my recovery fast and he perscibed me pred for only 2 weeks. So, yes I was on both at the same time.
Being on both, didn't really cause me any ill effects other than the usual side effects from steriods. (joint pain) mostly
Diagnosed July 2005 with Pancolitis
Asacol 4 tabs 3 times daily
Entocort 3 in the morning