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Sulfasalazine 500 MG Oral Tablet [Azulfidine] — RxCUI 208437

RxNorm drug concept · Semantic branded drug
RxCUI 208437 Semantic branded drug · SBD ● Current RxNorm concept 1 FDA product 2 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

RxCUI208437
Official nameSulfasalazine 500 MG Oral Tablet [Azulfidine]
Concept typeSemantic branded drug (SBD)
RxNorm statusCurrent RxNorm concept
Also known asAzulfidine 500 MG Oral Tablet
FDA products mapped1
Package NDCs mapped2
RxNorm release07/06/2026
Snapshot dataJul 14, 2026

📖 Skip the Codes — Read It in Plain English.

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

📗 Our plain-language guide HelloPharmacist
  • Sulfasalazine is mainly used to treat ulcerative colitis — it helps calm flares and keep the disease in remission. The delayed-release tablet form is also approved for rheumatoid a...
  • What is sulfasalazine actually used for?
  • For ulcerative colitis, improvement can vary from person to person. For rheumatoid arthritis, it's important to know that the delayed-release form does not produce an immediate res...
  • The most common side effects are nausea, stomach upset, loss of appetite, and headache — these happen in roughly a third of people and are often worse at higher doses. You might al...
📖 Read our full Sulfasalazine guide →

🕸️ Concept Web — How Sulfasalazine 500 MG Oral Tablet [Azulfidine] 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 Sulfasalazine 500 MG Oral Tablet [Azulfidine] RxCUI 208437

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.

    • Sulfasalazine 9524
  2. Brand names 1

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

    • Azulfidine 202770
  3. Dose forms 9

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

    • Sulfasalazine Oral Tablet 373991
    • Sulfasalazine Oral Product 1162997
    • Sulfasalazine Pill 1162998
    • Sulfasalazine Oral Tablet [Azulfidine] 369240
    • Azulfidine Oral Product 1166096
    • Azulfidine Pill 1166097
    • 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

  • Sulfasalazine 500 MG Oral Tablet SCD · 198232
  • Sulfasalazine 500 MG SCDC · 316751
  • Sulfasalazine Oral Tablet SCDF · 373991
  • Sulfasalazine Oral Product SCDG · 1162997
  • Sulfasalazine Pill SCDG · 1162998

Brand-Name Concepts

  • Sulfasalazine 500 MG [Azulfidine] SBDC · 569134
  • Sulfasalazine Oral Tablet [Azulfidine] SBDF · 369240
  • Azulfidine Oral Product SBDG · 1166096
  • Azulfidine Pill SBDG · 1166097
  • Azulfidine BN · 202770

📦 FDA Products & Package NDCs

1 product · 2 package NDCs
2 package NDCs map to RxCUI 208437 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
00013-0101-10 1 BOTTLE in 1 CARTON (0013-0101-10) / 100 TABLET in 1 BOTTL... Azulfidine Pfizer Laboratories Div Pfizer Inc 2020-02-27
00013-0101-30 1 BOTTLE in 1 CARTON (0013-0101-30) / 300 TABLET in 1 BOTTL... Azulfidine Pfizer Laboratories Div Pfizer Inc 2020-02-27
Observed labelers: Pfizer Laboratories Div Pfizer 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.