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LYMPHIR vs ONTAK

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 21, 2026·How we rate

Possible drug interaction. LYMPHIR and ONTAK 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

New
New

Pharmacy pays

Type

RX
RX

Active ingredient

DENILEUKIN DIFTITOX-CXDL
DENILEUKIN DIFTITOX

Dosage forms

Injectable
Injectable

Drug class

Cd25-Directed Cytotoxin

Boxed warning

Treats

T-Cell Lymphoma
T-Cell Lymphoma

Frequently asked questions

What is the difference between Lymphir and Ontak?

Lymphir contains Denileukin Diftitox-Cxdl, while Ontak contains Denileukin Diftitox — 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.