Label: EXTRA STRENGTH ANTACID CALCIUM CARBONATE, 750MG- calcium carbonate chewable tablets tablet, chewable

  • NDC Code(s): 51316-636-25, 51316-636-69
  • Packager: CVS HEALTH CORP
  • Category: HUMAN OTC DRUG LABEL
  • DEA Schedule: None

Drug Label Information

Updated April 11, 2026

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  • Drug Facts

  • ACTIVE INGREDIENT

    Active ingredient (per tablet)

    Calcium Carbonate USP 750 mg

  • PURPOSE

    Purpose

    Antacid

  • INDICATIONS & USAGE

    Uses relieves

    • heartburn
    • acid indigestion
    • sour stomach
    • upset stomach associated with these symptoms
  • WARNINGS

    Warnings

    Ask a doctor or pharmacist before use if you are presently taking a prescription drug. Antacids may interact with certain prescription drugs.

  • WHEN USING

    When using this product

    • do not take more than 10 tablets in 24 hours
    • if pregnant do not take more than 6 tablets in 24 hours
    • do not use the maximum dosage for more than 2 weeks except under the advice and supervision of a doctor
  • KEEP OUT OF REACH OF CHILDREN

    Keep out of reach of children.

  • DOSAGE & ADMINISTRATION

    Directions

    • adults and children 12 years of age and over: chew 2-4 tablets as symptoms occur, or as directed by a doctor.
    • do not take for symptoms that persist for more than 2 weeks unless advised by a doctor.

  • OTHER SAFETY INFORMATION

    Other information

    • each tablet contains: elemental calcium 300 mg, magnesium 8 mg
    • store at room temperature. Keep the container tightly closed.
  • INACTIVE INGREDIENT

    Inactive ingredients adipic acid, corn starch, D&C red 27 lake, D&C yellow 10 Al lake, dextrose anhydrous, FD&C blue no. 1 Al lake, FD&C yellow #6 lake, flavors, magnesium stearate, maltodextrin, sucralose

  • QUESTIONS

    Questions or comments?

    Call 1-877-290-4008

  • PRINCIPAL DISPLAY PANEL

    CVS 636R Calcium Carbonate Chewable Tablets 750mg, 250ct CVS 636R 250ct

    CVS 636R Calcium Carbonate Chewable Tablets 750mg, 96ct

    CVS 636R 96ct

  • INGREDIENTS AND APPEARANCE
    EXTRA STRENGTH ANTACID CALCIUM CARBONATE, 750MG 
    calcium carbonate chewable tablets tablet, chewable
    Product Information
    Product TypeHUMAN OTC DRUGItem Code (Source)NDC:51316-636
    Route of AdministrationORAL
    Active Ingredient/Active Moiety
    Ingredient NameBasis of StrengthStrength
    CALCIUM CARBONATE (UNII: H0G9379FGK) (CALCIUM CATION - UNII:2M83C4R6ZB) CALCIUM CARBONATE750 mg
    Inactive Ingredients
    Ingredient NameStrength
    MALTODEXTRIN (UNII: 7CVR7L4A2D)  
    FD&C YELLOW NO. 6 ALUMINUM LAKE (UNII: GYP6Z2JR6Q)  
    D&C RED NO. 27 ALUMINUM LAKE (UNII: ZK64F7XSTX)  
    D&C YELLOW NO. 10 ALUMINUM LAKE (UNII: CQ3XH3DET6)  
    FD&C BLUE NO. 1 ALUMINUM LAKE (UNII: J9EQA3S2JM)  
    MAGNESIUM STEARATE (UNII: 70097M6I30)  
    STARCH, CORN (UNII: O8232NY3SJ)  
    ADIPIC ACID (UNII: 76A0JE0FKJ)  
    SUCRALOSE (UNII: 96K6UQ3ZD4)  
    ANHYDROUS DEXTROSE (UNII: 5SL0G7R0OK)  
    Product Characteristics
    Colororange (light yellow, light green, mottled pink) Scoreno score
    ShapeROUNDSize16mm
    FlavorFRUIT (Assorted Fruit(Orange, Lemon, Lime marvel, strawberry)) Imprint Code T;471
    Contains    
    Packaging
    #Item CodePackage DescriptionMarketing Start DateMarketing End Date
    1NDC:51316-636-6996 in 1 BOTTLE; Type 0: Not a Combination Product04/01/2025
    2NDC:51316-636-25250 in 1 BOTTLE; Type 0: Not a Combination Product04/01/2025
    Marketing Information
    Marketing CategoryApplication Number or Monograph CitationMarketing Start DateMarketing End Date
    OTC Monograph DrugM00104/01/2025
    Labeler - CVS HEALTH CORP (062312574)
    Registrant - TIME CAP LABORATORIES, INC. (037052099)
    Establishment
    NameAddressID/FEIBusiness Operations
    MARKSANS PHARMA LIMITED677604129manufacture(51316-636)
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