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.
Pills containing other magnesium compounds are much more effective, and magnesium citrate is especially helpful for people looking for a way to treat constipation. For other problems, magnesium citrate can have an unwanted laxative side effect, so it might be more convenient to take it in a different form.