bowel preparation
"Like many others I was given this preparation for a colonoscopy.  The instructions directed me to take 1 x 1 litre mix the previous day, and the second 1 x 1 litre mix on the morning of the examination.  The taste was salty but bearable, I added orange squash to improve the flavour of the lemon flavoured mix, I think any addition is guaranteed to improve the flavour as it is bland and salty, refrigerating it also helped to take the edge off the taste.  



The first 1 x 1 litre started working after approx 25 mins, but it took approx 4.5 hours before I could comfortably / safely without fear of needing a sprint to loo, go to bed to sleep.



The second dose started working immediately, approx 5 minutes ..... It certainly does it's job!!"