Since 2007, MiraLAX has been the #1 Physician Recommended OTC brand of laxative. MiraLAX is a non stimulant osmotic laxative that works with the water in your body to provide gentle constipation relief. MiraLAX provides constipation ease without harsh side effects like cramping, bloating, sudden urgency, and gas. With no added taste or grit, MiraLAX mixes into most beverages, hot or cold. MiraLAX generally produces a bowel movement in 1-3 days.