BESREMI vs BUSULFEX

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated June 7, 2026·How we rate

Possible drug interaction. BESREMI and BUSULFEX 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.

Attribute	BESREMI	BUSULFEX
Rating	New	New
Pharmacy pays	—	—
Type	RX	RX
Active ingredient	ROPEGINTERFERON ALFA-2B-NJFT	BUSULFAN
Manufacturer	Pharmaessentia Corp	Otsuka
Dosage forms	Injectable	Injectable
Drug class	—	Alkylating Drug
Boxed warning	Boxed warning	None
Treats	Polycythemia Vera	Polycythemia Vera, Bcr-Abl Positive Chronic Myelogenous Leukemia, Primary Myelofibrosis

besremi busulfex

Rating

New

Pharmacy pays

—

Type

Active ingredient

ROPEGINTERFERON ALFA-2B-NJFT

BUSULFAN

Manufacturer

Pharmaessentia Corp

Otsuka

Dosage forms

Injectable

Drug class

—

Alkylating Drug

Boxed warning

None

Treats

Polycythemia Vera

Polycythemia Vera, Bcr-Abl Positive Chronic Myelogenous Leukemia, Primary Myelofibrosis

Frequently asked questions

What is the difference between Besremi and Busulfex?

Besremi contains Ropeginterferon Alfa-2b-Njft, while Busulfex contains Busulfan — 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.