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Calcium Carbonate


Related terms
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    Related terms
    • U.S. Brand Names: Alcalak [OTC];Alka-Mints® [OTC];Cal-Gest [OTC];Cal-Mint [OTC];Calcarb 600 [OTC] [DSC];Calci-Chew® [OTC];Calci-Mix® [OTC];Caltrate® 600 [OTC];Children's Pepto [OTC];Chooz® [OTC];Florical® [OTC];Maalox® Children's [OTC];Maalox® Regular Strength [OTC];Nephro-Calci® [OTC];Nutralox® [OTC];Oysco 500 [OTC];OystercalT 500 [OTC];Rolaids® Extra Strength [OTC];Super Calcium 600 [OTC];TitralacT [OTC];Tums® E-X [OTC];Tums® Extra Strength Sugar Free [OTC];Tums® Quickpak [OTC];Tums® SmoothiesT [OTC];Tums® Ultra [OTC];Tums® [OTC]
    • Canadian Brand Names: Apo-Cal®;Calcite-500;Caltrate®;Caltrate® Select;Os-Cal®
    • Mexican Brand Names: Calsan;Caltrate;Caltrón;Mubonet;Osteomin;Tums
    • Pharmacologic Category: Antacid;Antidote;Calcium Salt;Electrolyte Supplement, Oral

    • It is used to promote proper growth and good health.
    • It is used to prevent or treat osteoporosis.
    • It is used to lower high phosphate levels.
    • It is used to treat heartburn and indigestion.
    • It is used to prevent and treat low calcium levels.
    • Antacids reduce stomach acid.
    • Calcium is a dietary supplement that helps the body make strong bones.
    • Calcium reduces absorption of phosphate through the gastrointestinal tract.


    How to take

    • Take 1 hour before or 2 hours after high bran or fiber meal.
    • Take this drug with food.
    • Take 1 to 3 hours after meals as antacid.
    • Chewable tablet: Chew or crush well. Mix crushed tablet with food. Do not swallow whole.
    • A liquid (suspension) is available if you cannot swallow pills. Shake well before use.
    • Those who have feeding tubes can also use the liquid. Flush the feeding tube before and after this drug is given.
    • Osteoporosis:
    • Follow diet plan and exercise program as recommended by healthcare provider.

    Missed Dose

    • Take a missed dose as soon as you think about it.
    • If it is close to time for the next dose, skip the missed dose and return to your normal time.
    • Do not take two doses or extra doses.


    • Store at room temperature.
    • Protect capsules and tablets from moisture. Do not store in a bathroom or kitchen.



    • This drug does not mix well with some drugs. Serious reactions may occur. Check all drugs with healthcare provider.


    • If you have an allergy to calcium or any other part of this drug.
    • Tell healthcare provider if you are allergic to any drugs. Make sure to tell about the allergy and what signs you had. This includes telling about rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs involved.
    • If you have any of the following conditions: High calcium levels, kidney stones, or low phosphate levels.


    • If you are allergic to tartrazine, talk with healthcare provider. Some products contain tartrazine.
    • If you have kidney disease, talk with healthcare provider.
    • Check drugs with healthcare provider. This drug may not mix well with other drugs.
    • Try to separate other drugs from this one by 2 hours. This drug prevents absorption of many drugs.
    • Do not take iron, zinc, or folic acid within 2 hours of this drug.
    • Limit alcohol intake (includes wine, beer, and liquor).
    • Tell healthcare provider if you are pregnant or plan on getting pregnant.
    • Tell healthcare provider if you are breast-feeding.

    Side Effects

    • Belly pain.
    • Nausea or vomiting. Small frequent meals, frequent mouth care, sucking hard, sugar-free candy, or chewing sugar-free gum may help.
    • Constipation. More liquids, regular exercise, or a fiber-containing diet may help. Talk with healthcare provider about a stool softener or laxative.


    • Change in health problem being treated. Is it better, worse, or about the same?

    Contact a healthcare provider

    • If you suspect an overdose, call your local poison control center or ER right away.
    • Signs of a very bad reaction to the drug. These include wheezing; chest tightness; fever; itching; bad cough; blue skin color; fits; or swelling of face, lips, tongue, or throat.
    • Big change in thinking clearly and logically.
    • Severe nausea or vomiting.
    • Severe constipation.
    • Any rash.
    • Health problem is not better or you are feeling worse.

    General Statements

    • If you have a very bad allergy, wear allergy ID at all times.
    • Do not share your drugs with others and do not take anyone else's drugs.
    • Keep all drugs out of the reach of children and pets.
    • Most drugs can be thrown away in household trash after mixing with coffee grounds or kitty litter and sealing in a plastic bag.
    • In Canada return any unused drugs back to the pharmacy. Also, visit for more facts about the right way to get rid of unused drugs.
    • Keep a list of all your drugs (prescription, natural products, supplements, vitamins, OTC) with you. Give this list to healthcare provider (doctor, nurse, nurse practitioner, pharmacist, physician assistant).
    • Call your doctor for health help about side effects. You may also call the FDA at 1-800-FDA-1088 or in Canada to Health Canada's Canada Vigilance Program at 1-866-234-2345.
    • Talk with healthcare provider before starting any new drug, including OTC, natural products, or vitamins.

    Author information
    • Copyright © 1978-2010 Lexi-Comp Inc. All rights reserved.

    Copyright © 2011 Natural Standard (

    The information in this monograph is intended for informational purposes only, and is meant to help users better understand health concerns. Information is based on review of scientific research data, historical practice patterns, and clinical experience. This information should not be interpreted as specific medical advice. Users should consult with a qualified healthcare provider for specific questions regarding therapies, diagnosis and/or health conditions, prior to making therapeutic decisions.

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