Clean the bowels and relieve pain with a Fleet ready-to-use laxative enema. This enema guarantees relief from constipation with no irritation or spasms. Inside the 4.5-ounce constipation-relieving enema is 19 grams of monobasic sodium phosphate and 7 grams of dibasic sodium phosphate. This enema works to add more water into your intestines so that the stool inside softens and you can have a bowel movement. Fleet's ready-to-use enema is also ideal for bowel cleansing before having a colonoscopy or other medical exam involving the bowels.