What is the primary use of saline laxatives?

Saline laxatives are primarily used to treat constipation. They work by drawing water into the intestines, which increases the fluid content in the bowel and ultimately stimulates bowel movements. This enhanced moisture helps to soften the stool and make it easier to pass. Because they are effective in promoting bowel movements, these products are particularly useful for individuals who experience occasional constipation or need to empty their bowels in a controlled manner, such as before certain medical procedures or examinations.

While stool softening is an effect of saline laxatives, it is not their primary use; the key outcome is the initiation of bowel movement. Saline laxatives are not used to treat obesity, as their mechanism does not contribute to weight loss or fat reduction. They also do not address nausea, which typically requires different treatment approaches.