No, never had a prep. But beware, barium REALLY stops you up. I always had diarrhea so it never bothered me but if you have slow motility, a) you'll probably be there for many hours waiting for it to move through your system, so bring a book! b) be careful afterwards because of how constipated it could make you.
I always explain to the dr. that I won't be able to drink both cups of barium, and so far they've never forced me. I usually can manage about 1-1.5 cups, and they're usually fine with that. They'd rather have that than have you throw up and have to start over.
Stephanie, 29 years old
March 2000-Diagnosed Crohn's Colitis
(Tried every drug imaginable, but lived 10 years with daily diarrhea)
March 18, 2010-Total Proctocolectomy and Permanent Ileostomy! :)
(Now med free, 4 subsequent procedures to correct blockages at stoma site)
Stoma named Zoe...She's my best bud!! :)