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Calcium carbonate 1000 MG / magnesium hydroxide 270 MG / simethicone 80 MG Chewable Tablet — RxCUI 2556794

Name: Calcium carbonate 1000 MG / magnesium hydroxide 270 MG / simethicone 80 MG Chewable T… (RxCUI 2556794)
Creator: Brian Staiger, PharmD

RxNorm drug concept · Semantic clinical drug

RxCUI 2556794 Semantic clinical drug · SCD ● Current RxNorm concept 2 FDA products 2 package NDCs Snapshot Jul 14, 2026

This page is curated, coded, and maintained by Dr. Brian Staiger, PharmD

Compiled from public NLM RxNorm and FDA (openFDA NDC directory) data sources. Editorial policy

What you’re looking at: the standardized identity of one medicine, as the U.S. drug-data system sees it. Below — every FDA-listed product, package code, price benchmark, and billing code that maps to it.

🗂️ Key Facts

RxCUI2556794

Official nameCalcium carbonate 1000 MG / magnesium hydroxide 270 MG / simethicone 80 MG Chewable Tablet

Concept typeSemantic clinical drug (SCD)

RxNorm statusCurrent RxNorm concept

Also known ascalcium carbonate 1000 MG / magnesium hydroxide 270 MG / dimethicone 80 MG Chewable Tablet

FDA products mapped2

Package NDCs mapped2

RxNorm release07/06/2026

Snapshot dataJul 14, 2026

📖 Skip the Codes — Read It in Plain English.

Our pharmacist-built guide to Calcium Carbonate: what it is, how it’s used, side effects, and interactions.

📗 Our plain-language guide HelloPharmacist

Most people use it as a fast-acting antacid to get quick relief from heartburn, acid indigestion, sour stomach, or an upset stomach. You'll find it in brands like Tums, Rolaids, an...
What is calcium carbonate actually used for?
Don't use the maximum daily dose for more than 2 weeks in a row without talking to a doctor first. If your heartburn or stomach symptoms keep coming back or don't improve, that's y...
How long can I keep taking this before I should see a doctor?

📖 Read our full Calcium Carbonate guide →

🕸️ Concept Web — How Calcium carbonate 1000 MG / magnesium hydroxide... Connects

One RxCUI never lives alone. Follow the path from the raw ingredient down to the exact strength-and-form concepts FDA products carry — every stop is a real RxNorm concept with its own identifier. Hover or focus any chip for what it means.

This page's concept Calcium carbonate 1000 MG / magnesium hydroxide 270 MG / simethicone 80 MG Chewable Tablet RxCUI 2556794 Semantic clinical drug · SCD

Every web starts here: one RxCUI, one fixed meaning in the RxNorm vocabulary.

Ingredients 4

The active substance itself — no strength, form, or brand attached yet.
- Calcium carbonate 1897 IN
- Magnesium hydroxide 6581 IN
- Simethicone 9796 IN
- Calcium carbonate / magnesium hydroxide / simethicone 691015 MIN
Dose forms 8

The ingredient poured into a form — tablet, solution, cream — still without one fixed strength.
- Calcium carbonate / magnesium hydroxide / simethicone Chewable Tablet 374752 SCDF
- Calcium carbonate / magnesium hydroxide / simethicone Chewable Product 1294748 SCDG
- Calcium carbonate / magnesium hydroxide / simethicone Oral Product 1153579 SCDG
- Calcium carbonate / magnesium hydroxide / simethicone Pill 1153580 SCDG
- Chewable Tablet 91058 DF
- Chewable Product 1294716 DFG
- Oral Product 1151131 DFG
- Pill 1151133 DFG
Clinical & branded drugs 3

Ingredient + strength + dose form. These are the concepts real FDA products actually carry.
- Calcium carbonate 1000 MG 329619 SCDC
- Magnesium hydroxide 270 MG 1874538 SCDC
- Simethicone 80 MG 317665 SCDC

Showing up to 8 concepts per family — 15 of 15 stored related concepts drawn.

These are official RxNorm vocabulary relationships — how concepts name and organize the same medicine. They do not establish therapeutic equivalence or substitutability: two concepts appearing in one web is never a statement that products can be swapped.

🔀 Generic ⇄ Brand Crosswalk

The same medicine has an unbranded (generic) identity and one or more brand-name identities — each with its own RxCUI. This is a naming relationship in RxNorm, not a statement that any two products are substitutable.

Generic (Clinical) Concepts

Calcium carbonate 1000 MG SCDC · 329619
Magnesium hydroxide 270 MG SCDC · 1874538
Simethicone 80 MG SCDC · 317665
Calcium carbonate / magnesium hydroxide / simethicone Chewable Tablet SCDF · 374752
Calcium carbonate / magnesium hydroxide / simethicone Chewable Product SCDG · 1294748
Calcium carbonate / magnesium hydroxide / simethicone Oral Product SCDG · 1153579
Calcium carbonate / magnesium hydroxide / simethicone Pill SCDG · 1153580

📦 FDA Products & Package NDCs

2 products · 2 package NDCs

2 package NDCs map to RxCUI 2556794 in the current snapshot — up to 50 per page. Each linked NDC opens its full package page.

Package NDC	Package	Brand / generic name	Labeler	Marketing start
62372-0551-51	50 TABLET, CHEWABLE in 1 BOTTLE (62372-551-51)	Mylanta One Antacid/Anti-Gas	Infirst Healthcare Inc.	2021-08-16
62372-0552-51	50 TABLET, CHEWABLE in 1 BOTTLE (62372-552-51)	Mylanta One Antacid/Anti-Gas	Infirst Healthcare Inc.	2021-08-16

Observed labelers: Infirst Healthcare Inc. (2) — this is the FDA-listed mapping footprint, not sales, inventory, availability, or market share.

🗃️ Sources & Limits

Atlas generation902fddb9-e9c1-4004-bf4c-dba4d51037c7

openFDA export observedJul 14, 2026

RxNorm release07/06/2026

Methodology2026-07-full-catalog-v1

A shared RxCUI does not prove interchangeability. Products mapped to the same concept are not thereby equivalent or substitutable — equivalence is a separate, product-level determination.
Listing here does not establish approval or coverage. Appearing in this snapshot is a data observation, not an FDA approval status or a payer coverage decision.
Missing data never means zero. A silent dataset (no price, no billing code, no utilization) means no observation — not that the real-world value is zero.
Counts describe the mapping footprint. Product, package, and labeler counts are the FDA-listed mapping footprint in this snapshot — not sales, inventory, availability, or market share.

This product uses publicly available data from the U.S. National Library of Medicine (NLM), National Institutes of Health, Department of Health and Human Services; NLM is not responsible for the product and does not endorse or recommend this or any other product.

Machine-readable JSON

Reference information about drug-concept identifiers and public regulatory data — not medical advice. Talk to your pharmacist or prescriber about your own medication.