Key takeaways
Zegerid (omeprazole/sodium bicarbonate) and Rolaids (calcium carbonate/magnesium hydroxide) are both used to manage stomach acid, but they have several differences. Zegerid combines a proton pump inhibitor (omeprazole) and an antacid (sodium bicarbonate) to lower stomach acid production and protect the omeprazole from being broken down by stomach acid. It is available both over-the-counter (OTC) and by prescription, and it treats conditions like stomach ulcers, gastroesophageal reflux disease (GERD), and erosive esophagitis. On the other hand, Rolaids is an OTC antacid that provides quick relief for heartburn and indigestion by neutralizing stomach acid with calcium and magnesium. Unlike Zegerid, Rolaids is not meant for long-term use and does not treat more serious conditions. Zegerid must be taken on an empty stomach, while Rolaids can be taken as needed at the first sign of discomfort. Additionally, Zegerid has a higher risk of side effects like bone fractures and low magnesium levels with long-term use, whereas Rolaids can cause high blood calcium levels, especially in people with kidney problems.
