CT SCAN - Tummy for Bowel Cancer

CT Scan - Bowel
I was given a clearing medicine called 'Gastrogafin,' It made me really very sick and it did not clear my bowel at all.

My appointment was cancelled and a new appointment was arranged.

I was then given Movicol which did the trick and arrived for the scan. They were going to inject me with a contrast agent to aid clearer scan.

However I discovered that the contrast agent / dye was in common with gastrogafin properties.

So I declined at the last minute not to have this agent injected as was really worried about the potential effect.

Has anyone else had experience of this ??