Key takeaways
Magnesium citrate (Citroma) and docusate/senna (Senna-S, Dok Plus) are both over-the-counter medications used to treat occasional constipation, but they work differently and have distinct characteristics. Magnesium citrate is a saline laxative that helps your intestines hold onto water, making it easier to have a bowel movement within 30 minutes to 6 hours. In contrast, docusate/senna combines a stool softener (docusate) and a stimulant laxative (senna), which typically produces a bowel movement in 6 to 12 hours. Magnesium citrate is not recommended for people with kidney problems or electrolyte imbalances. Both medications should be avoided if you have stomach pain, nausea, or vomiting. Magnesium citrate is usually taken as a liquid, whereas docusate/senna comes in pill form. Both medications should not be used for more than a week without consulting a healthcare professional. Common side effects of magnesium citrate include nausea and stomach pain, while docusate/senna can cause stomach cramps and loose stools.
