What is the primary action of docusate sodium when prescribed?

Docusate sodium is a surfactant laxative primarily used to soften stools, making them easier to pass. Its mechanism of action involves decreasing the surface tension of stool, which allows water and fats to penetrate the stool mass, leading to a softer consistency. This stool softening effect is particularly beneficial for individuals who may be experiencing constipation or for those who need to avoid straining during bowel movements, such as post-operative patients or those with certain medical conditions.

The focus on softening stools highlights the importance of docusate sodium in managing constipation, especially in circumstances where straining could cause complications. Therefore, the primary action of docusate sodium is indeed to soften the feces, facilitating easier bowel movements and improving comfort for patients dealing with constipation.