BESPONSA vs PURINETHOL

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated October 10, 2026·How we rate

Possible drug interaction. BESPONSA and PURINETHOL 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	BESPONSA	PURINETHOL
Rating	New	72/100
Pharmacy pays	—	~$30.33 /30
Type	RX	RX
Active ingredient	INOTUZUMAB OZOGAMICIN	MERCAPTOPURINE
Manufacturer	Wyeth Pharms Inc	Stason Pharms
Dosage forms	Injectable	Tablet
Drug class	Cd22-Directed Immunoconjugate	—
Boxed warning	Boxed warning	None
Treats	Precursor Cell Lymphoblastic Leukemia-Lymphoma	Non-Hodgkin Lymphoma, B-Cell Chronic Lymphocytic Leukemia, Precursor Cell Lymphoblastic Leukemia-Lymphoma

besponsa purinethol

Rating

New

72/100

Pharmacy pays

—

~$30.33 /30

Type

Active ingredient

INOTUZUMAB OZOGAMICIN

MERCAPTOPURINE

Manufacturer

Wyeth Pharms Inc

Stason Pharms

Dosage forms

Injectable

Tablet

Drug class

Cd22-Directed Immunoconjugate

—

Boxed warning

None

Treats

Precursor Cell Lymphoblastic Leukemia-Lymphoma

Non-Hodgkin Lymphoma, B-Cell Chronic Lymphocytic Leukemia, Precursor Cell Lymphoblastic Leukemia-Lymphoma

Frequently asked questions

What is the difference between Besponsa and Purinethol?

Besponsa contains Inotuzumab Ozogamicin, while Purinethol contains Mercaptopurine — 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.