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Famotidine 20 MG Oral Tablet [Calmicid] — RxCUI 1091399

RxNorm drug concept · Semantic branded drug
RxCUI 1091399 Semantic branded drug · SBD ● Current RxNorm concept 1 FDA product 1 package NDC 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

RxCUI1091399
Official nameFamotidine 20 MG Oral Tablet [Calmicid]
Concept typeSemantic branded drug (SBD)
RxNorm statusCurrent RxNorm concept
Also known asCalmicid 20 MG Oral Tablet; Calmicid AC 20 MG Oral Tablet
FDA products mapped1
Package NDCs mapped1
RxNorm release07/06/2026
Snapshot dataJul 14, 2026

📖 Skip the Codes — Read It in Plain English.

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

📗 Our plain-language guide HelloPharmacist
  • Famotidine injection is specifically for people in the hospital who can't swallow pills right now — maybe because of surgery, a procedure, or another medical reason. It delivers th...
  • Why am I getting famotidine through an IV instead of just taking a pill?
  • Because it goes straight into your vein, it works fast. The maximum acid-reducing effect kicks in within about 30 minutes of the infusion, and that effect can last 10 to 12 hours....
  • How quickly will famotidine injection start working?
📖 Read our full Famotidine Injection guide →

🕸️ Concept Web — How Famotidine 20 MG Oral Tablet [Calmicid] 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 Famotidine 20 MG Oral Tablet [Calmicid] RxCUI 1091399

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

  1. Ingredients 1

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

    • Famotidine 4278
  2. Brand names 1

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

    • Calmicid 1091396
  3. Dose forms 9

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

    • Famotidine Oral Tablet 372140
    • Famotidine Oral Product 1159021
    • Famotidine Pill 1159022
    • Famotidine Oral Tablet [Calmicid] 1091398
    • Calmicid Oral Product 1172256
    • Calmicid Pill 1172258
    • Oral Tablet 317541
    • Oral Product 1151131
    • +1 more in this family
  4. Clinical & branded drugs 3

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

Showing up to 8 concepts per family — 13 of 14 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

  • Famotidine 20 MG Oral Tablet SCD · 310273
  • Famotidine 20 MG SCDC · 315921
  • Famotidine Oral Tablet SCDF · 372140
  • Famotidine Oral Product SCDG · 1159021
  • Famotidine Pill SCDG · 1159022

Brand-Name Concepts

  • Famotidine 20 MG [Calmicid] SBDC · 1091397
  • Famotidine Oral Tablet [Calmicid] SBDF · 1091398
  • Calmicid Oral Product SBDG · 1172256
  • Calmicid Pill SBDG · 1172258
  • Calmicid BN · 1091396

📦 FDA Products & Package NDCs

1 product · 1 package NDC
1 package NDC map to RxCUI 1091399 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
54473-0411-01 1 BOTTLE in 1 BOX (54473-411-01) / 50 TABLET, COATED in 1 B... Calmicid AC Acid Reducer Melaleuca, Inc. 2018-01-20
Observed labelers: Melaleuca, Inc. (1) — 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.