Relaxit Microenemas 12x 5ml Relaxit micro-enema contains sodium citrate, sodium lauryl sulphate, glycerol, sorbic acid & sorbitol solution. Sodium citrate is an osmotic laxative that works by causing water to be drawn into the large bowel. It increases the water content & volume of the bowel contents, which softens the stools & also stimulates the bowel to contract & move its contents along to the rectum. Glycerol works by irritating the nerves in the bowel wall. These nerves make the muscles in the bowel contract harder & more often, which helps move the stools along. Sodium lauryl sulphate helps to lubricate the stools. Sorbic acid & sorbitol both also have a laxative effect. The combined action of these laxatives helps to soften hard stools & relieve constipation without straining.