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NEUPOGEN vs ZARXIO

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 17, 2026·How we rate

Possible drug interaction. NEUPOGEN and ZARXIO are different prescription medicines. Combining or switching between them can cause interactions — talk to a pharmacist or prescriber before making changes. This page is not medical advice.

Rating

70/100
68/100

Pharmacy pays

Type

RX
RX

Active ingredient

FILGRASTIM
FILGRASTIM-SNDZ

Manufacturer

Dosage forms

Injectable
Injectable

Drug class

Leukocyte Growth Factor

Boxed warning

None
None

Treats

Neutropenia, Chemotherapy-Induced Febrile Neutropenia
Neutropenia

Frequently asked questions

Which is better-rated, Neupogen or Zarxio?

By our independent rating, Neupogen scores higher — 3.5 vs 3.4 out of 5 for Zarxio. Ratings are based on FDA regulatory (recall-safety) data.

What is the difference between Neupogen and Zarxio?

Neupogen contains Filgrastim, while Zarxio contains Filgrastim-Sndz — they have different active ingredients.

Ratings are based on FDA regulatory (recall-safety) data. This comparison is for general reference only — not medical advice. Always consult a licensed professional before choosing or switching a medication.