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.
1 Take magnesium citrate solution on an empty stomach. Take magnesium citrate solution with a full glass of water (8 oz/240 mL).  If you also take a bisphosphonate (eg, alendronic acid), digoxin, or a tetracycline (eg, doxycycline), do not take them within 2 to 4 hours of taking magnesium citrate solution.