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Calcium Carbonate

Calcium carbonate is a calcium-based ingredient used mainly in over-the-counter antacids for heartburn and acid indigestion, and in some supplement products for bone, immune and calcium-level support.

Brand names Alka-MintsCalcidCalel-DCaltrate 600Chooz +11 more
Drug classes Blood Coagulation Factor
OTC Forms 10
Dr. Brian Staiger, PharmD, BCPS
Reviewed by Last reviewed Jul 10, 2026 Content updated Oct 2, 2026
🧬 Where this information comes from Click to expand

The clinical label records used on this page are FDA-filed Structured Product Labeling (SPL) retrieved through openFDA. We identified 484 clinical label sets within the page’s selected clinical scope after exact ingredient or ingredient-combination matching and applicable route/form matching. Forms, routes, brands, labelers, strengths, and NDC product-record counts are built separately from matching FDA National Drug Code Directory records. The linked DailyMed document is a representative official source for verification, not the page’s only clinical source. View the linked label on DailyMed →

✓No current FDA shortage listed · checked Oct 5, 2026 🚨Recall on record · 2
Calcium Carbonate at a glance The quick version — the full detail is in the Patient Information Guide below.
Dr. Brian Staiger, PharmD, BCPS
The Pharmacist’s Take By · Clinical pharmacist · Written

Calcium carbonate is the familiar chalky antacid behind Chooz, Alka-Mints and many store brands, a common first choice for occasional heartburn and acid indigestion because it neutralizes stomach acid quickly; it has been sold in the U.S. since about 1987 and is widely available as a generic. Most people tolerate it well, though frequent use can leave some feeling constipated or gassy. The thing to watch is how much and how long, so stay under your product's daily maximum and see a doctor if your heartburn still needs it after 2 weeks. If you take any prescription drug, ask a pharmacist before using it, since antacids can interfere with some.

Clinical pearls

  • Chew the tablets thoroughly instead of swallowing them whole, so they start working on stomach acid right away.
  • Daily limits differ between brands and strengths, so check the tablet maximum on the exact product you bought.
  • Some labels set a lower daily tablet limit during pregnancy, so follow the pregnancy line on your product's label.
  • Supplements like Caltrate use the same ingredient for calcium intake, not heartburn, so both add to your total calcium.
How you get itOver the counter
Comes asChewable tablet, Tablet, Lozenge +7
Earliest FDA record1987
Companies listing it with the FDA128
FDA label last updatedMar 2, 2024
FDA’s strongest warning (boxed)None on the label

Patient information guide A plain-language walkthrough of Calcium Carbonate, written from its FDA label.

What Calcium Carbonate is used for

▾

Calcium carbonate appears in several kinds of products with different uses.

  • Antacid chewable tablets, liquids and powder products (such as Rolaids, Tums, TC Max and Childrens Antacid) relieve heartburn, acid indigestion, sour stomach and upset stomach linked to these symptoms.
  • Mint Antacid 100/Mint Antacid 250 temporarily relieves those same symptoms.
  • Na Mi Cal is a supplement intended to support bone development and maintenance in adolescents and adults, and may help prevent osteoporosis.
  • Ki No Sin is a supplement used to help with body functions affected by diabetes and kidney disease, and to help maintain normal calcium ion levels.
  • R Cos is a dietary supplement to support the immune system and help ease symptoms of viral and bacterial infections. It may be taken with fever reducers, expectorants and pain relievers.

Calcium Carbonate dosage

▾

Dosing depends on the product, so follow your label or prescriber.

  • Adult chewable antacids are generally chewed as symptoms occur. Several labels say 2 to 4 tablets for adults and children 12 and older, while others differ.
  • Children's chewable and liquid antacids use weight (preferred) or age charts.
  • Many labels say to chew or crush tablets completely and not swallow them whole.
  • Many labels say not to use the maximum dose for more than 2 weeks unless a doctor advises it.

Dosing details from the FDA-approved label

From the Calcium Carbonate prescribing information (“Dosage and Administration”). Doses are set by your prescriber for your product, condition, kidney function and age — never change a dose on your own.

  • Soothe chewable tablets: children 2-5 years (24-47 lb)
    • 1 tablet
    • Chew or crush tablets completely before swallowing
    • Repeat dose as needed
    • Maximum: do not take more than 3 chewable tablets in a 24-hour period
    • find dose by weight (preferred), otherwise use age; do not use the maximum dosage for more than two weeks except under advice and supervision of a doctor
  • Soothe chewable tablets: children 6-11 years (48-95 lb)
    • 2 tablets
    • Chew or crush tablets completely before swallowing
    • Repeat dose as needed
    • Maximum: do not take more than 6 chewable tablets in a 24-hour period
    • find dose by weight (preferred), otherwise use age; do not use the maximum dosage for more than two weeks except under advice and supervision of a doctor
  • Soothe chewable tablets: children under 2 years (under 24 lb)
    • Ask a doctor
  • Adults and children 12 years and over (Good Neighbor Pharmacy, Antacid Extra Strength Assorted Berry)
    • Chew 2-4 tablets as symptoms occur, or as directed by a doctor
  • Calcium Carbonate Chewable Antacid: adults and children 12 years and older
    • Chew 2 to 4 tablets as symptoms occur, or as directed by a doctor
    • Maximum: do not take more than 15 tablets in a 24 hour period; if pregnant, do not take more than 10 tablets in 24 hours
    • children under 12 years: consult a doctor
  • Nutralox: adults and children 12 years and over
    • Thoroughly chew 2 tablets every 3 to 4 hours as symptoms occur
    • Maximum: do not take more than 16 tablets in 24 hours unless directed by a doctor
    • do not use the maximum dose for more than 2 weeks; children under 12 years: ask a doctor
  • Wonderbelly Maximum Strength Antacid: adults and children 12 years and older
    • Chew 2-3 tablets as symptoms occur, or as directed by a doctor
    • Chew or crush completely before swallowing
    • do not take for symptoms that persist for more than 2 weeks unless advised by a doctor
  • PhysiciansCare Antacid: adults and children 12 years and older
    • Chew 2 tablets every 2 or 3 hours as symptoms occur or as directed by a physician
    • Maximum: do not take more than 19 tablets in 24 hours
    • do not give to children under 12 years of age
  • Childrens Stomach Relief liquid: children 2-5 years (24-47 lb)
    • 5 mL
    • Repeat dose as needed
    • shake well; find dose by weight (preferred), otherwise age
  • Childrens Stomach Relief liquid: children 6-11 years (48-95 lb)
    • 10 mL
    • Repeat dose as needed
    • shake well; find dose by weight (preferred), otherwise age; under 2 years (under 24 lb): ask a doctor
Read the label’s full dosing text

Directions Adults and children 3 years of age and older: Allow one pop to dissolve slowly in mouth May be repeated as needed or as directed by a doctor Children under 3 years of age: ask a doctor

Directions Adults and children 10 years of age and older: allow one drop to dissolve slowly in mouth May be repeated as needed or as directed by a doctor Children under 10 years of age: ask a doctor

Directions Adults and children 10 years of age and older: allow one drop to dissolve slowly in mouth May be repeated as needed or as directed by a doctor Children under 10 years of age: ask a doctor

Directions Adults and children 3 years of age and older: allow one pop to dissolve slowly in mouth. May be repeated as needed or as directed by a doctor. Children under 3 years of age: ask a doctor.

Directions Adults and children 3 years of age and older: allow one pop to dissolve slowly in mouth. May be repeated as needed or as directed by a doctor. Children under 3 years of age: ask a doctor

Directions Adults and children 3 years of age and older: allow one pop to dissolve slowly in mouth May be repeated as needed or as directed by a doctor Children under 3 years of age: ask a doctor

Directions Adults and children 3 years of age and older: allow one pop to dissolve slowly in mouth. May be repeated as needed or as directed by a doctor.

Excerpted — the section continues on the label. Read the full Dosage and Administration section on DailyMed →

Calcium Carbonate warnings and precautions

▾
  • Do not exceed the daily maximum on your product's label. The limits differ by product.
  • Do not use the maximum dose for more than 2 weeks unless a doctor advises it.
  • Antacids may interact with certain prescription drugs.
  • Some labels carry a sore throat warning. Get prompt medical advice if the sore throat is severe, lasts more than 2 days, or comes with fever, headache, rash, nausea or vomiting.
  • Stop use and ask a doctor if a sore throat does not improve in 7 days, or if irritation, pain or redness persists or worsens.
  • Keep out of reach of children.

Calcium Carbonate interactions

▾

The label gives one general interaction caution.

  • Prescription drugs: antacids may interact with certain prescription drugs, so check with a doctor or pharmacist if you take one.

Not a complete list. The label covers the interactions the manufacturer studied or reported, and our own interaction database does not cover every medicine either. Bring your full medication list, including vitamins and herbal products, to your pharmacist.

Before taking Calcium Carbonate

▾
  • Tell a doctor or pharmacist if you take a prescription drug.
  • If pregnant or breastfeeding, ask a health professional first (Good Neighbor Pharmacy Antacid).
  • If pregnant, Calcium Carbonate Chewable Antacid limits use to 10 tablets in 24 hours. Another label limits it to 6 tablets in 24 hours.
  • Children under 12 should usually ask a doctor first. PhysiciansCare Antacid says not to give it to children under 12.
  • Children's products are dosed by weight or age. Ask a doctor for children under 24 lb or under 2 years.

How to store Calcium Carbonate

▾

store below 30°C (86°F) • contains FD&C Yellow No. store below 30°C (86°F) Other information (Orange Cream) • each tablet contains: elemental calcium 300 mg • store below 30°C (86°F) Phenylketonurics: Contains phenylalanine, less than 1mg per tablet.

Written from the FDA-approved label with AI and reviewed by our pharmacy team. How we use AI →

35

Supplements & herbs that interact with Calcium Carbonate

35 supplements and herbal products have documented interactions with Calcium Carbonate in the licensed clinical database we use. Most are manageable — but your pharmacist should know about everything you take, including vitamins and herbals.

Severity mix
  • Major · 1
  • Moderate · 14
  • Minor · 20
Every supplement checked against Calcium Carbonate — ranked by severity The full interaction hub: 1 major · 14 moderate · 20 minor · every one linked to its full report. Check Calcium Carbonate against your exact supplements

Educational information from a licensed clinical database (Natural Medicines) — see our data sources & update cadence. Not medical advice: an interaction being documented does not mean it will happen to you; do not start or stop medications or supplements without professional guidance.

5

Nutrient depletion considerations

Calcium Carbonate has been associated with lower levels of 5 nutrients in the clinical literature. This does not mean a deficiency will occur — it means these may be worth discussing with your pharmacist or healthcare provider, especially with long-term use.

Evidence & significance mix
  • Higher significance · 2
  • Moderate · 2
  • Unrated · 1
See the full Calcium Carbonate nutrient depletion report

Educational information from a licensed clinical database (Natural Medicines) — not medical advice. Do not start or stop medications or supplements without professional guidance.

Calcium Carbonate: pharmacist answers to common questions

Quick, plain-English answers to the questions patients ask most about Calcium Carbonate — the kind of thing our pharmacy team would talk through with you at the counter.

What is calcium carbonate usually used for?

▾
Most often it's an antacid. It relieves heartburn, acid indigestion, sour stomach and upset stomach tied to those symptoms. A few supplement products have other uses, like bone support (Na Mi Cal) or helping maintain calcium levels (Ki No Sin).

How do I take a chewable antacid?

▾
You chew it when symptoms come on. Many labels say to chew or crush the tablets completely and not swallow them whole. The number of tablets varies by product, so read your label or follow your doctor's directions.

How long can I keep using it?

▾
Many labels say not to use the maximum dose for more than 2 weeks unless a doctor is supervising you. If your symptoms last longer than 2 weeks, check in with your doctor.

Can I take it with my other medicines?

▾
Antacids may interact with certain prescription drugs. If you take any prescription medicine, ask me or your doctor before you start.

Is it okay during pregnancy?

▾
Ask a health professional first. Some labels set a lower daily limit during pregnancy. One says no more than 10 tablets in 24 hours, and another says no more than 6.

Can I give it to my child?

▾
It depends on the product and your child's age and weight. Children's liquid and chewable products have dosing charts. Under 2 years or under 24 lb, ask a doctor. Many adult products say to ask a doctor for children under 12.

Is Calcium Carbonate available over the counter?

▾
Yes. The Calcium Carbonate products listed with the FDA are sold over the counter, without a prescription (the chewable tablet, tablet, lozenge, chewing gum, oral suspension and other oral form forms). Follow the package directions. Your pharmacist can tell you which product is right for you.

When was Calcium Carbonate first available?

▾
The earliest FDA record we hold for Calcium Carbonate is from 1987: its first approval in Drugs@FDA or its earliest product listing in the NDC Directory, whichever is older. Many older medicines were in use before their first formal FDA approval, so this is the earliest date on record, not necessarily when Calcium Carbonate was first used.

Who makes Calcium Carbonate?

▾
128 companies currently list Calcium Carbonate products in the FDA's NDC Directory, including Haleon US Holdings LLC, Heb, Meijer Distribution Inc. That count includes repackagers and distributors as well as manufacturers (companies that sell only the raw ingredient are not counted), so fewer companies actually make it; the label on your bottle names the one that supplied yours.

Answers drafted from the FDA-approved label with AI and reviewed by our pharmacy team. How we use AI →

More about Calcium Carbonate on HelloPharmacist

Detailed data & references for Calcium Carbonate Forms & strengths, pricing, billing codes, manufacturers, safety reports and sourcing — the data behind the page. Most people can stop here. Each section below opens on a tap.

Calcium Carbonate forms and strengths (how it comes)

Calcium Carbonate is available in 10 forms. Different forms and brands can have different approved uses, doses, schedules, and directions. Follow the instructions for your exact product, and do not switch forms without guidance from your prescriber or pharmacist.

Chewable tablet

By mouth
Brands Tums
How this form is used
What it may be used for
  • Calcium Carbonate Chewable Antacid relieves acid indigestion, heartburn, sour stomach and upset stomach linked to these symptoms.
  • CAREONE Extra Strength and DG health Extra Strength relieve heartburn, acid indigestion, sour stomach and related upset stomach.
Important instructions
  • Calcium Carbonate Chewable Antacid: adults and children 12 and older chew 2 to 4 tablets as symptoms occur, or as directed by a doctor.
  • Calcium Carbonate Chewable Antacid: do not take more than 15 tablets in 24 hours, or more than 10 if pregnant.
  • Antacid Extra Strength Assorted Berry: adults and children 12 and older chew 2-4 tablets as symptoms occur, or as directed by a doctor.
  • Calcium Carbonate Chewable Antacid: children under 12 should consult a doctor.
Available strengths 7 strengths
Show 1 more strength Show fewer strengths
913 FDA-listed product records ⓘ

Lozenge

By mouth
Available strengths 2 strengths
14 FDA-listed product records ⓘ

Chewing gum

By mouth
Brands Chooz
Available strengths 2 strengths
8 FDA-listed product records ⓘ

Oral suspension

By mouth
Available strengths 1 strength
8 FDA-listed product records ⓘ

Other oral form

By mouth
Brands Tums
Available strengths 1 strength
6 FDA-listed product records ⓘ

Oral powder

By mouth
Available strengths 1 strength
2 FDA-listed product records ⓘ

Oral solution

By mouth
Brands Childrens Antacid Childrens Stomach Relief Antacid TC Max
How this form is used
What it may be used for
  • Childrens Stomach Relief Antacid and Childrens Antacid relieve acid indigestion, heartburn, sour stomach and related upset stomach.
  • TC Max is used to relieve heartburn, acid indigestion, sour stomach and related upset stomach.
Important instructions
  • Childrens Stomach Relief Antacid and Childrens Antacid: shake well before use.
  • Childrens Stomach Relief Antacid and Childrens Antacid: use the dosing chart by weight (preferred), otherwise by age, with the dosing cup provided.
  • Childrens Stomach Relief Antacid and Childrens Antacid: ask a doctor for children under 24 lb or under 2 years.
  • Childrens Stomach Relief Antacid and Childrens Antacid: the dose may be repeated as needed.
Available strengths 1 strength
2 FDA-listed product records ⓘ

Topical solution

On the skin
Available strengths 1 strength
2 FDA-listed product records ⓘ

Capsule

By mouth
Brands Ki No Sin
How this form is used
What it may be used for
  • Ki No Sin is a health supplement used to help with body functions affected by diabetes and kidney disease, and to help maintain normal calcium ion levels.
Available strengths 1 strength
1 FDA-listed product record ⓘ

Calcium Carbonate on the U.S. market: products, makers and brands

How Calcium Carbonate appears in the FDA’s National Drug Code Directory — including its dosage forms, strengths, brand names, manufacturers, and FDA-listed product records. These are directory records, not sales or prescription volume.

128 companies list 461 Calcium Carbonate product records with the FDA, mostly as chewable tablet, tablet, lozenge; the earliest marketing or approval year on record is 1987. Brand names on the directory include Alka-Mints, Calcid, Calel-D and 13 more; the rest are generics.

10
Dose forms ⓘ
128
Labelers (makers, repackagers, distributors)
40
Brand names
461
FDA-listed product records ⓘ
1987
Earliest FDA record ⓘ

FDA-listed product records by dose form (tablet variants merged) — FDA National Drug Code Directory. Record counts are not sales or prescription volume.

Also listed with the FDA, not a patient dose form: Powder (34) · Granule (4) — bulk drug substance sold to compounders/manufacturers and multi-item kits. These aren’t counted in the dose-form total above.

Haleon US Holdings LLC10%
Heb3%
Meijer Distribution Inc3%
Topco Associates LLC3%
Xiamen Kang Zhongyuan Biotechnology Co., Ltd.3%
Rite Aid Corporation2%
Other makers75%

Share of FDA-listed product records by manufacturer — FDA National Drug Code Directory. Record counts are not sales or prescription volume.

How widely Calcium Carbonate is used (Medicaid data)

A general measure of how commonly Calcium Carbonate is prescribed, based on Medicaid — one of the largest public drug programs. The figure below is prescriptions filled in Q1–Q4 2025, summed across every form and brand of the drug.

Think of this as a proxy for how widely Calcium Carbonate is used, drawn from freely available public data. Medicaid is just one program — these numbers don’t include Medicare, other government coverage, or commercial and cash-pay prescriptions, so real-world use is higher than what’s shown here.

245,920
Medicaid prescriptions filled (Q1–Q4 2025)
$2.4M gross Medicaid reimbursement (before mandatory rebates — net cost is lower)

How commonly is Calcium Carbonate prescribed? Of the 1,601 medications we measure, Calcium Carbonate ranks #362 by Medicaid prescriptions — more than 77% of them.

Where Calcium Carbonate ranks among the drugs we measure · Q1–Q4 2025 · neighbors ±5

Utilization by Calcium Carbonate product

Pick a product to see its own Medicaid numbers. Each chip is one clinical product — a specific strength & dosage form as defined by RxNorm — with brand-name and generic versions combined.

The 500 mg chewable tablet is the most-dispensed Calcium Carbonate product — about 79% of these Medicaid prescriptions.

calcium carbonate 500 MG Chewable Tablet Most dispensed

193,493 Medicaid prescriptions (Q1–Q4 2025) 79% of Calcium Carbonate prescriptions shown $1.8M gross reimbursement (before rebates) ≈ $9.30 per prescription (gross)

Summed across the 10 of 139 listed NDC products with Medicaid activity — every brand and generic of this exact strength & form. RxNorm 308907

calcium carbonate 250 MG/ML Oral Suspension

26,485 Medicaid prescriptions (Q1–Q4 2025) 11% of Calcium Carbonate prescriptions shown $270,543 gross reimbursement (before rebates) ≈ $10 per prescription (gross)

Summed across the 2 of 4 listed NDC products with Medicaid activity — every brand and generic of this exact strength & form. RxNorm 308891

calcium carbonate 750 MG Chewable Tablet

11,531 Medicaid prescriptions (Q1–Q4 2025) 5% of Calcium Carbonate prescriptions shown $135,309 gross reimbursement (before rebates) ≈ $12 per prescription (gross)

Summed across the 15 of 374 listed NDC products with Medicaid activity — every brand and generic of this exact strength & form. RxNorm 308915

calcium carbonate 648 MG Oral Tablet

11,514 Medicaid prescriptions (Q1–Q4 2025) 5% of Calcium Carbonate prescriptions shown $121,613 gross reimbursement (before rebates) ≈ $11 per prescription (gross)

Summed across the 1 of 17 listed NDC products with Medicaid activity — every brand and generic of this exact strength & form. RxNorm 577040

calcium carbonate 1000 MG Chewable Tablet

2,897 Medicaid prescriptions (Q1–Q4 2025) 1% of Calcium Carbonate prescriptions shown $33,634 gross reimbursement (before rebates) ≈ $12 per prescription (gross)

Summed across the 4 of 254 listed NDC products with Medicaid activity — every brand and generic of this exact strength & form. RxNorm 308892

Shares are of the Medicaid prescriptions shown here. Product grouping follows RxNorm (the National Library of Medicine’s drug terminology), so “one product” means one strength & dosage form regardless of manufacturer. Dollar figures are gross Medicaid reimbursement before mandatory rebates — rebates (often large, especially for brand-name drugs) are confidential, so actual net cost to Medicaid is lower than shown.

Source: Medicaid State Drug Utilization Data (CMS), aggregated by generic ingredient — summed across every NDC (all brands, strengths, salt forms and dosage forms) of Calcium Carbonate, and across all states and both fee-for-service and managed-care claims. A general popularity signal; it excludes Medicare, commercial insurance and cash prescriptions, so it is not total U.S. use. Based on the 32 of 788 listed Calcium Carbonate NDCs with Medicaid activity.

Compare Calcium Carbonate products

A representative set of FDA-listed product records for Calcium Carbonate — across manufacturers, strengths, and dosage forms, grouped by form with each product’s manufacturer and how the FDA approved it. The same medicine may be made and packaged by different companies, so a single drug can have many directory entries. (It’s also why a refill can look different — a new shape, color, or box — even though it contains the same medication.)

Showing 102 of 461 products — FDA National Drug Code Directory. See every product, package size and price: browse all 461 Calcium Carbonate NDCs →

Calcium Carbonate recall history

A recall is when a specific batch of a medicine is pulled from the market — usually a manufacturing issue, not a problem with the drug itself. Class I is most serious, Class III least.

The FDA’s enforcement reports list 3 Calcium Carbonate recalls since July 2021, covering 18 product listings. Two of them are still ongoing or began in the last six months and are listed first. A recall names specific lots from one company, so check the lot number on your own bottle rather than assuming every product is affected; your pharmacist can check whether your supply came from an affected lot.

Ongoing Class II May 28, 2026 · Guardian Drug Co. Inc.
Presence of foreign substance: small metallic particles in chewable tablets.
  • TopCare health, ULTRA STRENGTH, Antacid Tablets, CALCIUM CARBONATE 1000mg, 72 CHEWABLE TABLETS, DISTRIBUTED BY TOPCO ASSOCIATES LLC.,ELK GROVE VILLAGE, IL 60007, NDC 76162-129-68. Lots: Lot #: 1716089, expires: JAN- 2029. FDA record D-0579-2026 →
  • TopCare health, EXTRA STRENGTH, Antacid Tablets, CALCIUM CARBONATE 750mg, 96 CHEWABLE TABLETS, DISTRIBUTED BY TOPCO ASSOCIATES LLC.,ELK GROVE VILLAGE, IL 60007, NDC 76162-128-22. Lots: Lot #: 1276119, expires: JAN- 2029. FDA record D-0578-2026 →
  • EQUALINE ultra strength, antacid tablets, calcium carbonate 1000mg, 72 chewable tablets, DISTRIBUTED BY SUPERVALU INC.,EDEN PRARIE, MN 55344 USA, NDC 41163-171-68. Lots: Lot #: 1716089, expires: JAN- 2029. FDA record D-0577-2026 →
  • EQUALINE extra strength, antacid tablets, calcium carbonate 750mg, 96 chewable tablets, DISTRIBUTED BY SUPERVALU INC.,EDEN PRARIE, MN 55344 USA, NDC 41163-129-22. Lots: Lot #: 1276118, expires: JAN- 2029. FDA record D-0576-2026 →
  • GOODSENSE Ultra Strength, Antacid TABLETS, Calcium Carbonate 1000 mg, 72 Chewable Tablets, Distributed by: Geiss, Destin & Dunn, inc., Peachtree City, GA, NDC 50804-171-68. Lots: Lot #: 1716089, expires: JAN- 2029. FDA record D-0575-2026 →
  • GOODSENSE Extra Strength, Antacid TABLETS, Calcium Carbonate 750 mg, 96 Chewable Tablets, Distributed by: Geiss, Destin & Dunn, inc., Peachtree City, GA, NDC 50804-129-22. Lots: Lot #: 1276118, expires: JAN- 2029. FDA record D-0574-2026 →
  • H.E.B Extra Strength Calcium Carbonate Antacid Tablets, Calcium Carbonate 750 mg, 96 Chewable Tablets, MADE WITH PRIDE & CARE FOR H.E.B, 646 S. FLORES ST, SAN ANTONIO, TX, NDC 37808-136-22. Lots: Lot #: 1276118, expires: JAN 2029. FDA record D-0573-2026 →
  • FAMILY WELLNESS, ULTRA STRENGT, ANTACID TABLETS, Calcium Carbonate 1000 mg, 72 CHEWABLE TABLETS, DISTRIBUTED BY: MIDWOOD BRANDS, LLC, 500 VOLVO PKWY, CHESAPEAKE, VA 23320 USA., NDC 55319-171-68. Lots: Lot #: 1716089, expires: JAN 2029. FDA record D-0568-2026 →
  • and 5 more product listings in this recall (13 in all)
Ongoing Class II Nov 11, 2024 · Safecor Health, LLC
cGMP Deviations: Observations were made that some blister card-foils were separating from the blister cavity.
  • Calcium Carbonate Chewable 500 mg, 1 tablet in blister card-foils, 100-count unit dose box, www.safecorhealth.com, NDC 48433-106-01 Lots: Lot# 24A0073, exp. date 06/28/2026 FDA record D-0059-2025 →
Class II Dec 2, 2022 · Completed · GlaxoSmithKline Consumer Healthcare Holdings LLC
Presence of Foreign Substance: The foreign material is primarily comprised of glass mineral wool.
  • TUMS Antacid, Calcium Carbonate USP 1000 mg, Assorted Berries flavor, chewable tablets, 72-count bottle, Dist. by: GSK CH, Warren, NJ 07059. NDC: 0135-0118-83, UPC 3-0766-0746-50-8 Lots: Lot#: KH5L, Exp. Date 09/30/2027 FDA record D-0079-2024 →
  • TUMS Antacid, Calcium Carbonate USP 1000 mg, Assorted Fruit flavor, Chewable Tablets, packaged in 160-count bottles, Dist. by: GSK CH, Warren, NJ 07059. NDC: 0135-0118-14, UPC 3-0766-0746-10-2 Lots: Lot #: HV6B, Exp. Date 9/30/2027 FDA record D-0075-2024 →
  • TUMS Antacid, Calcium Carbonate USP 1000 mg, Peppermint flavor, chewable tablets, packaged in 12-count roll, Dist. by: GSK CH, Warren, NJ 07059. NDC: 0135-0228-01, UPC 3-0766-0746-80-5 Lots: Lot #: HA7G, Exp. Date 8/31/2027 FDA record D-0074-2024 →
  • TUMS Antacid, Calcium Carbonate USP 1000 mg, Peppermint flavor, chewable tablets, 72-count bottle, Dist. by: GSK CH, Warren, NJ 07059. NDC: 0135-0228-06, UPC 3-0766-0745-85-3 Lots: Lot#: HB2G, Exp. Date 8/31/2027 FDA record D-0073-2024 →

Source: FDA enforcement (recall) reports, via openFDA; our copy was last updated Sep 24, 2026.

RxNorm Concept Web — From Ingredient to Every Form and Strength

This page starts with one ingredient concept (IN). The branches below show its dose-form concepts (SCDF), then the available clinical drug and strength concepts (SCD). Combination products remain separate concepts with their own pages.

Ingredient (IN) Calcium Carbonate RxCUI 1897 8 dose forms · 31 strengths
  1. Dose form (SCDF) Chewable Tablet RxCUI 371198 In current FDA listings
    Clinical drug / strength (SCD) 220 MG RxCUI 282679 400 MG RxCUI 317865 420 MG RxCUI 313884 500 MG RxCUI 308907 600 MG RxCUI 308914 650 MG RxCUI 991370 750 MG RxCUI 308915 850 MG RxCUI 205074 1000 MG RxCUI 308892 1177 MG RxCUI 1432465 1250 MG RxCUI 359297 1500 MG RxCUI 204636 2500 MG RxCUI 250757
  2. Dose form (SCDF) Chewing Gum RxCUI 374651 In current FDA listings
    Clinical drug / strength (SCD) 500 MG RxCUI 308906 750 MG RxCUI 2281777
  3. Dose form (SCDF) Effervescent Oral Tablet RxCUI 1536889 In current FDA listings
    Clinical drug / strength (SCD) 1250 MG RxCUI 1536922
  4. Dose form (SCDF) Oral Capsule RxCUI 371202 In current FDA listings
    Clinical drug / strength (SCD) 1250 MG RxCUI 308888
  5. Dose form (SCDF) Oral Lozenge RxCUI 371199 In current FDA listings
    Clinical drug / strength (SCD) 200 MG RxCUI 2667489 250 MG RxCUI 2742640
  6. Dose form (SCDF) Oral Powder RxCUI 866485 In current FDA listings
    Clinical drug / strength (SCD) 1000 MG RxCUI 866486
  7. Dose form (SCDF) Oral Suspension RxCUI 371200 In current FDA listings
    Clinical drug / strength (SCD) 36.8 MG/ML RxCUI 1490487 80 MG/ML RxCUI 308901 250 MG/ML RxCUI 308891
  8. Dose form (SCDF) Oral Tablet RxCUI 371201 In current FDA listings
    Clinical drug / strength (SCD) 250 MG RxCUI 198527 420 MG RxCUI 198529 500 MG RxCUI 318076 648 MG RxCUI 577040 650 MG RxCUI 198533 1250 MG RxCUI 282465 1500 MG RxCUI 237420 1625 MG RxCUI 1099878

Look up RxCUI 1897 in the RxCUI Atlas →

RxNorm is the U.S. National Library of Medicine’s normalized drug vocabulary. Its concept hierarchy can include forms that are not currently marketed; the status on each branch compares that concept with current FDA listings. RxCUIs identify vocabulary concepts, not individual packages or manufacturers.

💵 What Calcium Carbonate costs pharmacies (NADAC benchmark)

The national average invoice price pharmacies pay for the drug itself, from CMS's NADAC survey (data as of Sep 30, 2026). This is a supply-cost benchmark — not a retail price and not what you'd pay at the counter.

FormStrengthPharmacy acquisition benchmark
Tablet · Oral 648 mg $0.008 per tablet NDC details & price history
Suspension · Oral 1250 mg/5 mL $0.020 per mL NDC details & price history
Why show this? Your out-of-pocket cost depends on insurance, pharmacy markup, and discounts — but the acquisition benchmark tells you whether the medication itself is inexpensive or costly, which strengths cost more per dose, and whether a cash-price quote is in a reasonable range. Each row links to the NDC-level record with its full price history.

Source: CMS National Average Drug Acquisition Cost (NADAC), a survey of retail pharmacy invoice prices. Benchmarks shown are the range across package sizes of a representative product for each form and strength — other manufacturers' products may differ.

Calcium Carbonate brand names

Calcium Carbonate is sold under 16 brand names in the FDA directory — Alka-Mints, Calcid, Calel-D, Caltrate 600 and others. A brand and its generic contain the same active ingredient; the brand name belongs to one company's product.

Alka-Mints Calcid Calel-D Caltrate 600 Chooz Miralac Os-Cal 500 Rolaids Titralac Tums Nutralox Healthy Mama D-Cal Alkums OsCal 500 Pepto-Bismol Children's

Who makes Calcium Carbonate: manufacturers and labelers

128 companies list Calcium Carbonate products with the FDA. By number of product records, the largest are Haleon US Holdings LLC, Heb, Meijer Distribution Inc. Labelers include manufacturers and repackagers; the product in your bottle depends on which one your pharmacy stocks.

Haleon US Holdings LLC 47 Heb 15 Meijer Distribution Inc 15 Topco Associates LLC 15 Xiamen Kang Zhongyuan Biotechnology Co., Ltd. 12 Rite Aid Corporation 11 CVS Pharmacy 10 Rite Aid 10 United Natural Foods, Inc. Dba Unfi 10 Discount Drug Mart, Inc 9 Harris Teeter, LLC 9 Wal-Mart Stores,Inc., 9 Bayer HealthCare LLC. 8 Cvs 8 Family Dollar Services, Inc. 8 Guardian Drug Company 8 Target Corporation 8 Dolgencorp, Llc 7 GoodSense 7 Hyvee Inc 7 Kroger Company 7 Retail Business Services, LLC. 7 Bi-Mart 6 DeMoulas Market Basket 6

…and 104 more on the FDA NDC directory.

Calcium Carbonate drug class (RxNorm)

Calcium Carbonate belongs to the Calcium compounds class.

Drug family (ATC) Calcium compounds, Calcium

Classified by RxNorm RxClass — the U.S. National Library of Medicine's standardized drug-classification service (Established Pharmacologic Class from the FDA, the ATC drug family from the WHO, and mechanism of action). Reference only, not medical advice.

Sources for this Calcium Carbonate page

Core label, product, RxNorm, safety, and utilization data on this page come from the sources identified below. AI-written, editorial, and licensed sections are labeled separately.

📄
FDA-filed drug labels (SPL) Uses, dosing, warnings & side effects from SPL records retrieved through openFDA; the linked representative set can be verified on DailyMed. ✓ Linked label effective Mar 2, 2024
🏭
Forms, brands & labelersAggregated from ingredient-matched FDA National Drug Code Directory product records for Calcium Carbonate.
📈
Real-world reportsThe FDA Adverse Event Reporting System (FAERS), served through openFDA.
🚨
Recalls & shortagesopenFDA drug-enforcement reports and the FDA drug-shortage database.
🧾 Clinical label set — FDA-filed SPL labels retained for Calcium Carbonate after exact ingredient or ingredient-combination matching and applicable route/form matching
Clinical labels in scope
484
Finished products in the current FDA directory
461
Companies listing them (makers, repackagers, distributors)
128
FDA labeler codes behind them ⓘ
107
Linked representative label ⓘ
GlaxoSmithKline Consumer Healthcare Holdings (US) LLC
Linked label effective
Mar 2, 2024
Composite sections available
7
Linked SPL Set ID
453ceee1-414b-4f4c-8408-eb540a79ca05
Linked SPL Document ID
12b764a2-fe05-5019-e063-6394a90a7c6f
Open the linked representative label on DailyMed ↗

How this page is built

HelloPharmacist combines public FDA and NLM records and does not author the underlying clinical facts. The plain-language sections are written with AI from the FDA-approved label text and reviewed by our pharmacy team before publication. GlaxoSmithKline Consumer Healthcare Holdings (US) LLC is the representative DailyMed label linked for verification and dates. This is general education, not medical advice: always talk to your doctor or pharmacist about your own medicines. How we build and review drug pages →