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Rezafungin 200 MG Injection [Rezzayo] — RxCUI 2639165

Name: Rezafungin 200 MG Injection [Rezzayo] (RxCUI 2639165)
Creator: Brian Staiger, PharmD

RxNorm drug concept · Semantic branded drug

RxCUI 2639165 Semantic branded drug · SBD ● Current RxNorm concept 1 FDA product 1 package NDC 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

RxCUI2639165

Official nameRezafungin 200 MG Injection [Rezzayo]

Concept typeSemantic branded drug (SBD)

RxNorm statusCurrent RxNorm concept

Also known asRezzayo 200 MG Injection; Rezzayo (as rezafungin acetate) 200 MG Injection

FDA products mapped1

Package NDCs mapped1

Reported Medicaid activity (SDUD)144 prescriptions · 6 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 Rezafungin Injection: what it is, how it’s used, side effects, and interactions.

📗 Our plain-language guide HelloPharmacist

Rezzayo is used to treat two serious Candida fungal infections: candidemia, which is a Candida infection in your bloodstream, and invasive candidiasis, where the fungus has spread...
No, Rezzayo is not a pill. It's given as an IV infusion — a slow drip through a needle into your vein — over about one hour. You'll receive it in a hospital or clinical setting, no...
How is this medication given — do I take a pill at home?
The most common ones include low potassium or magnesium levels (which your care team will monitor with blood tests), fever, nausea, vomiting, diarrhea, and anemia. During the infus...

📖 Read our full Rezafungin Injection guide →

🕸️ Concept Web — How Rezafungin 200 MG Injection [Rezzayo] 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 Rezafungin 200 MG Injection [Rezzayo] RxCUI 2639165 Semantic branded drug · SBD

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

Ingredients 1

The active substance itself — no strength, form, or brand attached yet.
- Rezafungin 2639155 IN
Brand names 1

The same medicine's trade names. A brand name alone says nothing about strength or form.
- Rezzayo 2639161 BN
Dose forms 6

The ingredient poured into a form — tablet, solution, cream — still without one fixed strength.
- Rezafungin Injection 2639159 SCDF
- Rezafungin Injectable Product 2639158 SCDG
- Rezafungin Injection [Rezzayo] 2639164 SBDF
- Rezzayo Injectable Product 2639163 SBDG
- Injection 1649574 DF
- Injectable Product 1151126 DFG
Clinical & branded drugs 3

Ingredient + strength + dose form. These are the concepts real FDA products actually carry.
- Rezafungin 200 MG Injection 2639160 SCD
- Rezafungin 200 MG 2639157 SCDC
- Rezafungin 200 MG [Rezzayo] 2639162 SBDC

Showing up to 8 concepts per family — 11 of 11 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

Rezafungin 200 MG Injection SCD · 2639160
Rezafungin 200 MG SCDC · 2639157
Rezafungin Injection SCDF · 2639159
Rezafungin Injectable Product SCDG · 2639158

Brand-Name Concepts

Rezafungin 200 MG [Rezzayo] SBDC · 2639162
Rezafungin Injection [Rezzayo] SBDF · 2639164
Rezzayo Injectable Product SBDG · 2639163
Rezzayo BN · 2639161

📦 FDA Products & Package NDCs

1 product · 1 package NDC

1 package NDC map to RxCUI 2639165 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
70842-0240-01	1 VIAL in 1 CARTON (70842-240-01) / 1 INJECTION, POWDER, LY...	REZZAYO	Melinta Therapeutics, LLC	2023-06-09

Observed labelers: Melinta Therapeutics, LLC (1) — 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
J0349	Inj, rezafungin, 1 mg	1	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.