Hi, Im from the uk and I have a colonoscopy next week. Now Im quite worried about taking the prep. Ive read all these stories about people not being able to keep the prep down. Now I know that may not worry all people, but I have a real big fear of being sick. On the day before the test Im due to take 2 x Bisacodyl tablets, then 10 mins later a sachet of citrafleet mixed with 50ml of water. I must then drink 3 litres of water. 4 hours later I have to have another sachet of citrafleet. Is there anything I can to help me tolerate the sachets of citrafleet. Im really worried about this now. 50ml of water isn't much is it, does it have to be with water can I take it with something else? Thanks