dragoon - a member of a European military unit formerly composed of heavily armed cavalrymen. 1  cavalryman, trooper - a soldier mounted on horseback; a cavalryman always takes good care of his mount.
However, milder products (e.g., stool softeners, bulk-forming laxatives) should be used whenever possible for constipation. Magnesium citrate is a saline laxative that is thought to work by increasing fluid in the small intestine. It usually results in a bowel movement within 30 minutes to 3 hours.
Magnesium Can Help Constipation. Magnesium is a popular cure for constipation. In the UK, Epsom salts (magnesium sulfate) is a powerful laxative, but Milk of Magnesia and magnesium citrate are also taken for constipation.