Dulcolax tablets are trusted around the world as a gentle reliable and easy to take treatment for constipation they are ideal if you are looking for overnight relief in particular each tablet contains a precisely measured amount of the active ingredient bisacodyl which ensures that dulcolax tablets are predictable and reliable within 6 12 hours of taking one dose the colon is gently stimulated and constipation is soon relieved dulolax tablets are known to be easy to take as they have a