I am scheduled Thurs for my first cat scan enterography. The tech said I have to drink 4 containers of 16 ozs of contrast over one hour (64 oz). I asked him to see if it contained sorbitol and it does. I know when I have products with sorbitol they really bother my stomach and cause diarrhea. Well I already have diarrhea. My GI doc said the only alternative is citracel. If I drink that much citracel then I am going to get all backed up and sick too. What other options are there. I do fine with the contrast milky liquid for a regular CAT scan but they can't use that. Has anyone else had any problems with this?