Fleet - Bisacodyl Enema is the number one doctor recommended stimulant laxative enema. This enema uses bisacodyl, the active ingredient that stimulates the intestine to increase rhythmic action, thereby pushing the feces through the bowel to produce a bowel movement within 5 to 20 minutes. Comes in a ready-to-use, disposable bottle with a soft, pre-lubricated comfortip. The Fleet Bisacodyl Enema is both sodium-free and latex-free. Size: 1.25 fl oz.