Key takeaways
Movantik (naloxegol) and magnesium citrate (Citroma) are both used to treat constipation, but they work in different ways and are used for different types of constipation. Movantik is a prescription medication specifically for constipation caused by opioid pain medications. It works by blocking opioid receptors in the intestines, helping you have a bowel movement. You take it once daily on an empty stomach. Common side effects include stomach pain, diarrhea, and nausea. Movantik is only available as a brand-name medication. On the other hand, magnesium citrate is an over-the-counter saline laxative used for occasional constipation. It helps your intestines hold onto water, making it easier to have a bowel movement. It usually works within 30 minutes to 6 hours. Magnesium citrate comes in liquid form and is available in different flavors. It’s important to avoid it if you have kidney problems or electrolyte imbalances. Common side effects include nausea, stomach pain, and diarrhea. Unlike Movantik, magnesium citrate has many generic options available.
