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Romiplostim 0.5 MG Injection — RxCUI 1728097

Name: Romiplostim 0.5 MG Injection (RxCUI 1728097)
Creator: Brian Staiger, PharmD

RxNorm drug concept · Semantic clinical drug

RxCUI 1728097 Semantic clinical drug · SCD ● Current RxNorm concept 3 FDA products 6 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

RxCUI1728097

Official nameRomiplostim 0.5 MG Injection

Concept typeSemantic clinical drug (SCD)

RxNorm statusCurrent RxNorm concept

Also known asromiplostim 500 MCG Injection

FDA products mapped3

Package NDCs mapped6

Reported Medicaid activity (SDUD)19,119 prescriptions · 46 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 Romiplostim Injection: what it is, how it’s used, side effects, and interactions.

📗 Our plain-language guide HelloPharmacist

Nplate works by attaching to a receptor in your bone marrow that normally responds to your body's own platelet-stimulating protein, thrombopoietin. When it activates that receptor,...
What exactly is Nplate doing in my body?
For ITP, Nplate is given once a week as an injection under the skin. Your doctor will check your platelet count regularly — weekly at first — and adjust your dose up or down based...
How often will I need to get these injections?

📖 Read our full Romiplostim Injection guide →

🕸️ Concept Web — How Romiplostim 0.5 MG Injection 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 Romiplostim 0.5 MG Injection RxCUI 1728097 Semantic clinical drug · SCD

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.
- Romiplostim 805452 IN
Brand names 1

The same medicine's trade names. A brand name alone says nothing about strength or form.
- Nplate 805456 BN
Dose forms 6

The ingredient poured into a form — tablet, solution, cream — still without one fixed strength.
- Romiplostim Injection 1728091 SCDF
- Romiplostim Injectable Product 1157982 SCDG
- Romiplostim Injection [Nplate] 1728094 SBDF
- Nplate Injectable Product 1178141 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.
- Romiplostim 0.5 MG 1728096 SCDC
- Romiplostim 0.5 MG Injection [Nplate] 1728099 SBD
- Romiplostim 0.5 MG [Nplate] 1728098 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

Romiplostim 0.5 MG SCDC · 1728096
Romiplostim Injection SCDF · 1728091
Romiplostim Injectable Product SCDG · 1157982

Brand-Name Concepts

Romiplostim 0.5 MG Injection [Nplate] SBD · 1728099
Romiplostim 0.5 MG [Nplate] SBDC · 1728098
Romiplostim Injection [Nplate] SBDF · 1728094
Nplate Injectable Product SBDG · 1178141
Nplate BN · 805456

📦 FDA Products & Package NDCs

3 products · 6 package NDCs

6 package NDCs map to RxCUI 1728097 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
55513-0221-01	1 VIAL in 1 CARTON (55513-221-01) / .5 mL in 1 VIAL	Nplate	Amgen, Inc	2008-08-25
55513-0221-21	1 VIAL in 1 CARTON (55513-221-21) / .5 mL in 1 VIAL	Nplate	Amgen, Inc	2025-08-01
55513-0222-01	1 VIAL in 1 CARTON (55513-222-01) / 1 mL in 1 VIAL	Nplate	Amgen, Inc	2008-08-25
55513-0222-21	1 VIAL in 1 CARTON (55513-222-21) / 1 mL in 1 VIAL	Nplate	Amgen, Inc	2025-08-01
55513-0223-01	1 VIAL, SINGLE-DOSE in 1 CARTON (55513-223-01) / .25 mL in...	Nplate	Amgen, Inc	2019-08-02
55513-0223-21	1 VIAL, SINGLE-DOSE in 1 CARTON (55513-223-21) / .25 mL in...	Nplate	Amgen, Inc	2025-08-01

Observed labelers: Amgen, Inc (6) — 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
J2802	Inj, romiplostim 1 microgram	4	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.