This information is for educational purposes only. It is not intended as medical advice. Always consult a qualified healthcare professional.
OTC
QC Regular Strength
500 mg/1, Tablet, chewable
INN: CALCIUM CARBONATE
Data updated: 2026-07-26
Available in:
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Form
TABLET, CHEWABLE
Dosage
500 mg/1
Route
ORAL
Storage
—
About This Product
User Reviews
Reviews reflect personal experiences and are not medical advice. Always consult your doctor.
Manufacturer
QUALITY CHOICE (CHAIN DRUG MARKETING ASSOCIATION)
ATC Code
A02AC01
Source
OPENFDA_NDC
AragoniteCalciteChalkLimeLimestoneMarbleOystershellPearl
471-34-1Y
Interactive imageInteractive image
CHEBI:3311Y
ChEMBL1200539N
9708Y
DB06724
207-439-9
D00932Y
10112
FF9335000
H0G9379FGKY
DTXSID3036238
InChI=1S/CH2O3.Ca/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2YKey: VTYYLEPIZMXCLO-UHFFFAOYSA-LYInChI=1/CH2O3.Ca/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2Key: VTYYLEPIZMXCLO-NUQVWONBAS
[Ca+2].[O-]C([O-])=OC(=O)([O-])[O-].[Ca+2]
Beryllium carbonateMagnesium carbonateStrontium carbonateBarium carbonateRadium carbonateZinc carbonateCadmium carbonateLead(II) carbonate
Calcium carbonateis achemical compoundwith thechemical formulaCaCO3. It is a common substance found inrocksas themineralscalciteandaragonite, most notably inchalkandlimestone,eggshells,gastropod shells,shellfishskeletons andpearls. Materials containing much calcium carbonate or resembling it are described ascalcareous. Calcium carbonate is the active ingredient inagricultural lime.Limescaleis calcium carbonate produced when calciumionsinhard waterreact withcarbonate ions. Calcium carbonate has medical use as acalciumsupplement or as anantacid, but excessive consumption can be hazardous and causehypercalcemiaand digestive issues.