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Calcium Carbonate / Magnesium Carbonate

Published: July 27, 2026Updated: August 28, 2026

Calcium Carbonate/Magnesium Carbonate is a combination antacid used to neutralize stomach acid and provide relief from heartburn, acid indigestion, and upset stomach. The magnesium component helps balance the constipating effects of calcium carbonate, making this combination well-tolerated for occasional digestive discomfort. This medication is available over-the-counter and provides relatively quick symptom relief.

Quick summary

A combination antacid that neutralizes stomach acid to relieve heartburn and indigestion.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 28, 2026Editorial policy

Key facts at a glance

RxNorm
214346
Generic
Calcium Carbonate / Magnesium Carbonate
Class
multi-ingredient
Brands
MagneBind
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.

Provides relief from heartburn, acid indigestion, sour stomach, and symptoms of gastroesophageal reflux disease (GERD). Also used as a calcium supplement when prescribed for this purpose.

Calcium and magnesium carbonates are alkaline compounds that work by directly neutralizing excess stomach acid, raising gastric pH to reduce acidity and irritation. The magnesium component also has a mild laxative effect that counteracts constipation from calcium carbonate.

Should not be used as a long-term solution for chronic acid problems. May reduce absorption of certain medications if taken simultaneously. People with kidney disease, hypercalcemia, or on calcium-restricted diets should consult a healthcare provider before use. Do not exceed recommended dosing. Seek medical advice if symptoms persist beyond 2 weeks.

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.

Medical Disclaimer

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 28, 2026. · Read our editorial policy