Alginic Acid Magnesium Carbonate
A combination antacid medication used to treat symptoms of gastroesophageal reflux (GERD), heartburn, and indigestion by neutralizing excess stomach acid and forming a protective barrier. This multi-ingredient formulation combines the acid-neutralizing properties of magnesium carbonate with the foam-forming action of alginic acid.
An antacid combination medication that neutralizes stomach acid and creates a protective foam barrier to relieve heartburn and reflux symptoms.
Key facts at a glance
- RxNorm
- 1008195
- Generic
- Alginic Acid / Magnesium Carbonate
- Class
- multi-ingredient
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Treats symptoms of acid reflux, heartburn, gastroesophageal reflux disease (GERD), and indigestion caused by excess stomach acid.
Magnesium carbonate neutralizes stomach acid through an acid-base reaction, while alginic acid reacts with gastric acid to form a viscous foam layer that floats on top of stomach contents, creating a physical barrier that helps prevent acid from flowing back into the esophagus.
Generally well-tolerated but may cause mild side effects such as diarrhea or constipation. Patients with kidney disease, on sodium-restricted diets, or taking other medications should consult a healthcare provider before use. Should be taken as directed, typically after meals and at bedtime.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 27, 2026. · Read our editorial policy