thanks,i tried taking it every other day and that worked to some extent but i took it for 4 days in a row and that really worked. since then i stopped the last 3-4 days and was fien till yesterday, not sure whether i should start again,going to see how tomorrow goes.i take 2 sachets at night and when i wake make sure i have a litre of water as i think it can dehydrate,see whatr happens i supposeMovicol is basically the same thing as Miralax, here in the States. I tried it for about 4 days in a row a few weeks ago. It took an awfully long time to produce a BM (4 days). But then once it did start to work, I was very regular and felt like I was pooping out daily everything that was ready to come out, if you know what I mean. It made my stools very, very soft, and this lasted for about 10 days.I took one dose a day for the first couple of days, then when nothing was happening, I took a double dose all at once. That gave me a terrible headache and made me feel sick, but it did get things moving! I haven't tried it on a long-term basis yet, but I'm planning to take some with me on a long, cross-country car trip next week. I imagine that I'll have to take it every day (or almost every day) for a whole month, so I'll report back again in October and let you know what happens.