What is a safe stool softener or laxative for severe constipation that won't harm your kidneys?

A safe stool softener for severe constipation is docusate sodium, which works by softening the stool and making it easier to pass. For a laxative, polyethylene glycol (PEG), such as MiraLAX, is often recommended as it is generally well-tolerated and has minimal impact on kidney function. However, it's important to consult a healthcare provider before using any medication, especially for severe cases, to ensure safety and appropriateness for your specific condition.