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Calcium carbonate 750 MG / simethicone 250 MG Chewable Tablet [Gas-X Total Relief] — RxCUI 2590817

RxNorm drug concept · Semantic branded drug
RxCUI 2590817 Semantic branded drug · SBD ● Current RxNorm concept 2 FDA products 4 package NDCs Snapshot Jul 14, 2026

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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

RxCUI2590817
Official nameCalcium carbonate 750 MG / simethicone 250 MG Chewable Tablet [Gas-X Total Relief]
Concept typeSemantic branded drug (SBD)
RxNorm statusCurrent RxNorm concept
Also known asGas-X Total Relief 750 MG / 250 MG Chewable Tablet
FDA products mapped2
Package NDCs mapped4
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 750 MG / simethicone 250 MG Ch... 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 750 MG / simethicone 250 MG Chewable Tablet [Gas-X Total Relief] RxCUI 2590817

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

  1. Ingredients 3

    The active substance itself — no strength, form, or brand attached yet.

    • Calcium carbonate 1897
    • Simethicone 9796
    • Calcium carbonate / simethicone 645048
  2. Brand names 1

    The same medicine's trade names. A brand name alone says nothing about strength or form.

    • Gas-X Total Relief 2590811
  3. Dose forms 12

    The ingredient poured into a form — tablet, solution, cream — still without one fixed strength.

    • Calcium carbonate / simethicone Chewable Tablet 371210
    • Calcium carbonate / simethicone Chewable Product 1295638
    • Calcium carbonate / simethicone Oral Product 1153841
    • Calcium carbonate / simethicone Pill 1153842
    • Calcium carbonate / simethicone Chewable Tablet [Gas-X Total Relief] 2590816
    • Gas-X Total Relief Chewable Product 2590815
    • Gas-X Total Relief Oral Product 2590813
    • Gas-X Total Relief Pill 2590814
    • +4 more in this family
  4. Clinical & branded drugs 4

    Ingredient + strength + dose form. These are the concepts real FDA products actually carry.

Showing up to 8 concepts per family — 16 of 20 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 750 MG / simethicone 250 MG Chewable Tablet SCD · 1741562
  • Calcium carbonate 750 MG SCDC · 315543
  • Simethicone 250 MG SCDC · 337310
  • Calcium carbonate / simethicone Chewable Tablet SCDF · 371210
  • Calcium carbonate / simethicone Chewable Product SCDG · 1295638
  • Calcium carbonate / simethicone Oral Product SCDG · 1153841
  • Calcium carbonate / simethicone Pill SCDG · 1153842

Brand-Name Concepts

  • Calcium carbonate 750 MG / simethicone 250 MG [Gas-X Total Relief] SBDC · 2590812
  • Calcium carbonate / simethicone Chewable Tablet [Gas-X Total Relief] SBDF · 2590816
  • Gas-X Total Relief Chewable Product SBDG · 2590815
  • Gas-X Total Relief Oral Product SBDG · 2590813
  • Gas-X Total Relief Pill SBDG · 2590814
  • Gas-X Total Relief BN · 2590811

📦 FDA Products & Package NDCs

2 products · 4 package NDCs
4 package NDCs map to RxCUI 2590817 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
00067-0118-01 10 TABLET, CHEWABLE in 1 POUCH (0067-0118-01) Gas-X Total Relief Maximum Strength Haleon US Holdings LLC 2022-02-03
00067-0118-02 1 BOTTLE in 1 CARTON (0067-0118-02) / 65 TABLET, CHEWABLE i... Gas-X Total Relief Maximum Strength Haleon US Holdings LLC 2022-02-03
00067-0118-03 1 BOTTLE in 1 CARTON (0067-0118-03) / 30 TABLET, CHEWABLE i... Gas-X Total Relief Maximum Strength Haleon US Holdings LLC 2022-02-03
00067-0119-01 2 TABLET, CHEWABLE in 1 POUCH (0067-0119-01) Gas-X Total Relief Maximum Strength Haleon US Holdings LLC 2022-02-03
Observed labelers: Haleon US Holdings LLC (4) — 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.