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Idelalisib 150 MG Oral Tablet [Zydelig] — RxCUI 1544475

RxNorm drug concept · Semantic branded drug
RxCUI 1544475 Semantic branded drug · SBD ● Current RxNorm concept 2 FDA products 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

RxCUI1544475
Official nameIdelalisib 150 MG Oral Tablet [Zydelig]
Concept typeSemantic branded drug (SBD)
RxNorm statusCurrent RxNorm concept
Also known asZydelig 150 MG Oral 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 Idelalisib: what it is, how it’s used, side effects, and interactions.

📗 Our plain-language guide HelloPharmacist
  • It is used together with rituximab to treat relapsed chronic lymphocytic leukemia, meaning the CLL has come back. It is for people who are suited to rituximab alone because of othe...
  • Zydelig is a tablet you swallow whole, twice a day, with or without food. If you miss a dose by less than 6 hours, take it as soon as you can. If it has been more than 6 hours, ski...
  • Common ones are diarrhea, fever, tiredness, rash, cough, and nausea. Blood tests may also show low white blood cells or raised liver enzymes. That is why regular lab work is part o...
  • Call for severe or lasting diarrhea, belly pain, new cough or trouble breathing, fever or signs of infection, yellow skin or eyes, or a severe skin rash or blistering. These can be...
📖 Read our full Idelalisib guide →

🕸️ Concept Web — How Idelalisib 150 MG Oral Tablet [Zydelig] 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 Idelalisib 150 MG Oral Tablet [Zydelig] RxCUI 1544475

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.

    • Idelalisib 1544460
  2. Brand names 1

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

    • Zydelig 1544466
  3. Dose forms 9

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

    • Idelalisib Oral Tablet 1544464
    • Idelalisib Oral Product 1544462
    • Idelalisib Pill 1544463
    • Idelalisib Oral Tablet [Zydelig] 1544468
    • Zydelig Oral Product 1544469
    • Zydelig Pill 1544470
    • 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

  • Idelalisib 150 MG Oral Tablet SCD · 1544473
  • Idelalisib 150 MG SCDC · 1544472
  • Idelalisib Oral Tablet SCDF · 1544464
  • Idelalisib Oral Product SCDG · 1544462
  • Idelalisib Pill SCDG · 1544463

Brand-Name Concepts

  • Idelalisib 150 MG [Zydelig] SBDC · 1544474
  • Idelalisib Oral Tablet [Zydelig] SBDF · 1544468
  • Zydelig Oral Product SBDG · 1544469
  • Zydelig Pill SBDG · 1544470
  • Zydelig BN · 1544466

📦 FDA Products & Package NDCs

2 products · 2 package NDCs
2 package NDCs map to RxCUI 1544475 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
61958-1701-01 60 TABLET, FILM COATED in 1 BOTTLE, PLASTIC (61958-1701-1) Zydelig Gilead Sciences, Inc. 2014-07-23
61958-1702-01 60 TABLET, FILM COATED in 1 BOTTLE, PLASTIC (61958-1702-1) Zydelig Gilead Sciences, Inc. 2014-07-23
Observed labelers: Gilead Sciences, 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.