Calcium Carbonate / Simethicone
Calcium Carbonate/Simethicone is a combination antacid and antiflatulent medication used to relieve symptoms of acid indigestion, heartburn, and gas. It contains calcium carbonate to neutralize stomach acid and simethicone to break up gas bubbles in the digestive tract.
This combination medication treats heartburn, acid indigestion, and gas by neutralizing stomach acid and relieving trapped gas.
Key facts at a glance
- RxNorm
- 645048
- Generic
- Calcium Carbonate / Simethicone
- Class
- multi-ingredient
- Brands
- Phazyme Gas & Acid, Mylicon Children's, Tums with Gas Relief, Gas-X Total Relief, Gas-X with Maalox, Maalox Max Quick Dissolve, Titralac Plus
- 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 acid indigestion, heartburn, sour stomach, gas, bloating, and pressure or fullness in the stomach and intestines associated with gas.
Calcium carbonate works as an antacid by neutralizing excess stomach acid, while simethicone acts as an antiflatulent that reduces surface tension of gas bubbles, allowing them to combine and be expelled more easily.
May interact with certain medications; take 2 hours before or after other medicines. Those with kidney disease should consult a doctor before use due to the calcium component. Not intended for severe or ongoing abdominal pain.
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