Calcium carbonate, magnesium hydroxide, and simethicone

Generic name: calcium carbonate, magnesium hydroxide, and simethicone [ KAL-see-um-KAR-bo-nate, mag-NEE-zee-um-hye-DROX-ide, and-sye-METH-i-kone ]
Brand names: Mylanta Coat and Cool, Mylanta One, Mylanta Tonight, Rolaids Advanced
Dosage forms: oral suspension (1200 mg-270 mg-80 mg/10 mL; 800 mg-270 mg-80 mg/10 mL), oral tablet, chewable (1000 mg-200 mg-40 mg; 1000 mg-270 mg-80 mg)
Drug class: Antacids

Medically reviewed by Drugs.com on Aug 26, 2024. Written by Cerner Multum.

What is calcium carbonate, magnesium hydroxide, and simethicone?

Calcium carbonate, magnesium hydroxide, and simethicone is a combination antacid and anti-gas medicine used in adults and children at least 12 years old to relieve heartburn, upset stomach, or acid indigestion.

Calcium carbonate, magnesium hydroxide, and simethicone may also be used for purposes not listed in this medication guide.

Carbonate, magnesium hydroxide, and simethicone side effects

Get emergency medical help if you have signs of an allergic reaction: hives, difficult breathing, swelling of your face, lips, tongue, or throat.

Less serious side effects may be more likely, or you may have none at all.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Warnings

Follow all directions on the label and package. Use exactly as directed. Tell your healthcare provider if you use other medicines or have other medical conditions or allergies.

Related/similar drugs

omeprazole, famotidine, pantoprazole, Protonix, esomeprazole, Nexium, Pepcid

Before taking this medicine

You should not use calcium carbonate, magnesium hydroxide, and simethicone if you are allergic to it or any of its ingredients.

Ask a doctor or pharmacist if calcium carbonate, magnesium hydroxide, and simethicone is safe to use if you have or have ever had:

• if you are on a low-magnesium diet;

• have a medical condition or take any other medicines; or

• kidney disease.

Ask a doctor before using this medicine if you are pregnant or breastfeeding.

Do not give this medicine to a child without medical advice.

How should I take calcium carbonate, magnesium hydroxide, and simethicone?

Use exactly as directed on the label, or as prescribed by your doctor.

Your dose needs may change if you switch to a different brand, strength, or form of this medicine. Avoid medication errors by using exactly as directed on the label, or as prescribed by your doctor.

Calcium carbonate, magnesium hydroxide, and simethicone oral suspension is usually taken between meals, at bedtime, or as directed by your doctor.

Shake the oral suspension (liquid). Measure a dose with the supplied measuring device (not a kitchen spoon).

You must chew the chewable tablet before you swallow it. Follow your doctor's dosing instructions very carefully.

Do not take more than your recommended dose or use this medicine more often than prescribed.

An antacid is usually taken for a short time until your symptoms clear up. Call your doctor if your symptoms do not improve after 2 weeks or if they get worse.

Store at room temperature away from moisture and heat. Do not allow the oral suspension to freeze.

What happens if I miss a dose?

Calcium carbonate, magnesium hydroxide, and simethicone is used when needed. If you are on a dosing schedule, skip any missed dose.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

What should I avoid while taking carbonate, magnesium hydroxide, and simethicone?

Antacids can make it harder for your body to absorb other medicines you take by mouth. Avoid taking other medications at the same time you take calcium carbonate, magnesium hydroxide, and simethicone.

Ask a doctor or pharmacist before using over-the-counter medicines that may contain ingredients similar to calcium carbonate, magnesium hydroxide, and simethicone.

What other drugs will affect carbonate, magnesium hydroxide, and simethicone?

Other drugs may affect calcium carbonate, magnesium hydroxide, and simethicone, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell your doctor about all other medicines you use.

Further information

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Medical Disclaimer

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