MiraLAX is the #1 doctor recommended laxative for occasional use, providing effective, predictable and gentle constipation relief. As an osmotic laxative, MiraLAX powder works naturally with the water in your body to hydrate, ease and soften stool. Unlike stimulant laxatives for constipation, which make your body go by forcefully stimulating the nerves in your colon, MiraLAX's only ingredient, polyethylene glycol 3350, provides a gentle experience that doesn't cause harsh side effects, such as sudden urgency, cramping, bloating and gas. MiraLAX powder laxative easily mixes into any beverage and completely dissolves, leaving no added taste or grit. MiraLAX laxative powder provides constipation relief for adults and children 17 years and older simply by dissolving 17 grams of this powder laxative into four to eight ounces of any beverage. With daily doses for up to seven days, MiraLAX constipation medicine relieves occasional constipation.