What kind of prep are you doing? I only ever had clear fluids the day before not two days before?
Good luck and hope everything goes well.
Have used Colyte four times now. First couple times followed the directions, 8 ounces every ten minutes I think. Last two times realize don't have to drink it quite that fast. Get through it and don't know if your prep sounds any better or not?
The first time I had a sigmoidoscopy and gastroscopy, I had to drink 8 ounces of the worst tasting stuff I had ever drank. The when I found out I had to drink 4 litres with the colonoscopy, I thought if I had to drink that much of the other stuff, it would be impossible. So found the Colytle not that bad, like you say just the volume.
I like white grape juice and white cranberry juice and the jello and chicken broth make you feel like you've at least had something.