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20 ML emapalumab-lzsg 25 MG/ML Injection [Gamifant] — RxCUI 2665328

Name: 20 ML emapalumab-lzsg 25 MG/ML Injection [Gamifant] (RxCUI 2665328)
Creator: Brian Staiger, PharmD

RxNorm drug concept · Semantic branded drug

RxCUI 2665328 Semantic branded drug · SBD ● Current RxNorm concept 7 FDA products 7 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

RxCUI2665328

Official name20 ML emapalumab-lzsg 25 MG/ML Injection [Gamifant]

Concept typeSemantic branded drug (SBD)

RxNorm statusCurrent RxNorm concept

Also known as20 ML Gamifant 25 MG/ML Injection; Gamifant 500 MG in 20 ML Injection; Gamifant 500 MG per 20 ML Injection

FDA products mapped7

Package NDCs mapped7

Reported Medicaid activity (SDUD)29 prescriptions · 1 state & territory Medicaid programs · latest period Q4 2025

RxNorm release07/06/2026

Snapshot dataJul 14, 2026

📖 Skip the Codes — Read It in Plain English.

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

📗 Our plain-language guide HelloPharmacist

Gamifant is used to treat a rare but life-threatening condition called hemophagocytic lymphohistiocytosis — HLH for short — where the immune system goes into dangerous overdrive an...
What exactly is Gamifant being used for?
No, Gamifant is not a pill. It's given as an IV infusion — a slow drip directly into a vein — and it takes about one hour each time. It's always given in a clinical setting by a he...
How is this medicine given — do I take a pill?

📖 Read our full Emapalumab-lzsg Injection guide →

🕸️ Concept Web — How 20 ML emapalumab-lzsg 25 MG/ML Injection [Gamifa... 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 20 ML emapalumab-lzsg 25 MG/ML Injection [Gamifant] RxCUI 2665328 Semantic branded drug · SBD

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

Ingredients 2

The active substance itself — no strength, form, or brand attached yet.
- Emapalumab 2104604 IN
- Emapalumab-lzsg 2104603 PIN
Brand names 1

The same medicine's trade names. A brand name alone says nothing about strength or form.
- Gamifant 2104612 BN
Dose forms 9

The ingredient poured into a form — tablet, solution, cream — still without one fixed strength.
- Emapalumab Injection 2104610 SCDF
- Emapalumab-lzsg Injection 2648899 SCDFP
- Emapalumab Injectable Product 2104609 SCDG
- Emapalumab-lzsg Injectable Product 2663362 SCDGP
- Emapalumab Injection [Gamifant] 2104614 SBDF
- Emapalumab-lzsg Injection [Gamifant] 2658510 SBDFP
- Gamifant Injectable Product 2104615 SBDG
- Injection 1649574 DF
- +1 more in this family
Clinical & branded drugs 3

Ingredient + strength + dose form. These are the concepts real FDA products actually carry.
- 20 ML emapalumab-lzsg 25 MG/ML Injection 2665325 SCD
- Emapalumab-lzsg 25 MG/ML 2665324 SCDC
- Emapalumab-lzsg 25 MG/ML [Gamifant] 2665327 SBDC

Showing up to 8 concepts per family — 14 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

20 ML emapalumab-lzsg 25 MG/ML Injection SCD · 2665325
Emapalumab-lzsg 25 MG/ML SCDC · 2665324
Emapalumab Injection SCDF · 2104610
Emapalumab-lzsg Injection SCDFP · 2648899
Emapalumab Injectable Product SCDG · 2104609
Emapalumab-lzsg Injectable Product SCDGP · 2663362

Brand-Name Concepts

Emapalumab-lzsg 25 MG/ML [Gamifant] SBDC · 2665327
Emapalumab Injection [Gamifant] SBDF · 2104614
Emapalumab-lzsg Injection [Gamifant] SBDFP · 2658510
Gamifant Injectable Product SBDG · 2104615
Gamifant BN · 2104612

📦 FDA Products & Package NDCs

7 products · 7 package NDCs

7 package NDCs map to RxCUI 2665328 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
66658-0501-01	1 VIAL, SINGLE-USE in 1 CARTON (66658-501-01) / 2 mL in 1 V...	GAMIFANT	Swedish Orphan Biovitrum AB (publ)	2019-05-17
66658-0505-01	1 VIAL, SINGLE-USE in 1 CARTON (66658-505-01) / 10 mL in 1...	GAMIFANT	Swedish Orphan Biovitrum AB (publ)	2019-05-17
66658-0510-01	1 VIAL, SINGLE-USE in 1 CARTON (66658-510-01) / 20 mL in 1...	GAMIFANT	Swedish Orphan Biovitrum AB (publ)	2020-06-26
66658-0522-01	1 VIAL, SINGLE-USE in 1 CARTON (66658-522-01) / 2 mL in 1 V...	GAMIFANT	Swedish Orphan Biovitrum AB (publ)	2023-06-07
66658-0523-01	1 VIAL, SINGLE-USE in 1 CARTON (66658-523-01) / 4 mL in 1 V...	GAMIFANT	Swedish Orphan Biovitrum AB (publ)	2023-06-07
66658-0524-01	1 VIAL, SINGLE-USE in 1 CARTON (66658-524-01) / 10 mL in 1...	GAMIFANT	Swedish Orphan Biovitrum AB (publ)	2023-06-07
66658-0525-01	1 VIAL, SINGLE-USE in 1 CARTON (66658-525-01) / 20 mL in 1...	GAMIFANT	Swedish Orphan Biovitrum AB (publ)	2023-06-07

Observed labelers: Swedish Orphan Biovitrum AB (publ) (7) — this is the FDA-listed mapping footprint, not sales, inventory, availability, or market share.

🧾 Billing Codes (HCPCS)

Medical billing codes (HCPCS "J-codes") that connect to this concept's packages — used mostly when a clinic or hospital bills for a drug it administers. Each code links to its full billing page.

Code	Descriptor	Mapped packages	Sources
J9210	Inj., emapalumab-lzsg, 1 mg	3	CMS

⚠ A crosswalk is not coverage: an NDC↔HCPCS mapping does not guarantee any payer covers or pays the code. Always verify the current payer policy before billing.

🗃️ 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.