What is Calcium Carbonate used for in medicines?

A mineral used as an antacid, calcium supplement, and tablet filler. Provides calcium or neutralizes stomach acid.

What are common sources of Calcium Carbonate?

Common sources include: Limestone; Marble. Manufacturers often do not disclose which source is used.

Is Calcium Carbonate halal?

Calcium Carbonate is classified halal for halal use with High confidence. A mineral used as an antacid, calcium supplement, and tablet filler. Mineral; no halal concern.

Mineral / antacid · Confidence: High

Also known as: E170, chalk

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Find medicines containing Calcium Carbonate

What it is

A mineral used as an antacid, calcium supplement, and tablet filler.

Source:FDA Inactive Ingredient Database (IIG)

Why it's here

Provides calcium or neutralizes stomach acid.

See:FDA Inactive Ingredient Database (IIG)

Why it may matter

Mineral; no halal concern.

Source:FDA Inactive Ingredient Database (IIG)

Common sources

Limestone
Marble

Reason codes

mineral

Evidence & citations1

Audit

Common questions

Is Calcium Carbonate halal?: RxHalal currently classifies Calcium Carbonate as HALAL (High confidence). Mineral; no halal concern. This is information only — not a fatwa or medical advice.
What is Calcium Carbonate used for in medicines?: A mineral used as an antacid, calcium supplement, and tablet filler. Provides calcium or neutralizes stomach acid.
What are common sources of Calcium Carbonate?: Common sources include: Limestone; Marble. Manufacturers often do not disclose which source is used.

Medicines using this excipient

4 total0 halal4 uncertain0 concern

Seen most often in these conditions

Where this excipient turns up across RxHalal's tracked treatment categories.