Calcium Carbonate

Calcium Carbonate in Medications

Calcium Carbonate: A Common Pharmaceutical Ingredient

Calcium carbonate is used in medications as a filler and stabilizing agent.

It does not treat symptoms when used as an inactive ingredient, but it helps give tablets structure and consistency.

What Is Calcium Carbonate?

Calcium carbonate is a naturally occurring mineral compound. In pharmaceuticals, it is refined and used in precise amounts for manufacturing consistency.

Why Is Calcium Carbonate Used in Medications?

Calcium carbonate is used because it:

  • Adds bulk to tablets
  • Improves tablet hardness
  • Supports uniform dosing
  • Helps maintain product stability

Ingredient Names to Look For

Calcium carbonate may be listed as:

  • Calcium carbonate
  • CaCO₃
  • E170

Where Does Calcium Carbonate Appear?

It is commonly found in:

  • Tablets
  • Chewable medications
  • Combination products

How to Check a Medication’s Ingredient List

Ingredient lists can vary by manufacturer and formulation.

Use PillParser to scan a medication and view its ingredient list.



Type a brand (Advil) or generic (Ibuprofen). We’ll find the label details.

To keep PillParser free, anonymous scans are limited.

Educational Note

This page provides educational information only and does not make medical claims.