These include: The types of magnesium mentioned above help relieve constipation by acting as osmotic laxatives. Osmotic laxatives draw water from surrounding tissues into the intestinal lumen ...

Osmotic Laxatives Osmotic laxatives work by drawing ... Some types of these drugs include: Lactulose (also known by the brand names Duphalac and Lactugal) Macrogol (also known by the brand names ...