Calcium Carbonate / Sodium Bicarbonate
This combination medication contains two antacids that work together to neutralize stomach acid and relieve symptoms of heartburn, acid indigestion, and upset stomach. It is commonly used by adults seeking relief from occasional digestive discomfort.
A combination antacid used to neutralize stomach acid and relieve heartburn and indigestion.
Key facts at a glance
- RxNorm
- 645051
- Generic
- Calcium Carbonate / Sodium Bicarbonate
- 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 occasional heartburn, acid indigestion, sour stomach, and general upset stomach caused by excess stomach acid. May also be used as a calcium supplement.
Calcium carbonate acts as a buffer to neutralize acid in the esophagus and stomach, while sodium bicarbonate provides rapid acid neutralization. Together they help raise gastric pH to relieve burning sensations.
May interact with certain medications by affecting their absorption. Use caution if you have kidney problems or are on a low-sodium diet due to the sodium bicarbonate content. Not recommended for long-term daily use without medical supervision. Consult a healthcare provider if symptoms persist beyond two 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.
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