KEYTRUDA vs PROLEUKIN

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated October 9, 2026·How we rate

Possible drug interaction. KEYTRUDA and PROLEUKIN 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	KEYTRUDA	PROLEUKIN
Rating	72/100	New
Pharmacy pays	—	—
Type	RX	RX
Active ingredient	PEMBROLIZUMAB	ALDESLEUKIN
Manufacturer	Merck Sharp Dohme	Chiron
Dosage forms	Injectable	Injectable
Drug class	Programmed Death Receptor-1 Blocking Antibody	Lymphocyte Growth Factor
Boxed warning	None	Boxed warning
Treats	Malignant Mesothelioma, Biliary Tract Neoplasms, Urinary Bladder Neoplasms	Renal Cell Carcinoma, Non-Hodgkin Lymphoma, Melanoma

keytruda proleukin

Rating

72/100

New

Pharmacy pays

—

Type

Active ingredient

PEMBROLIZUMAB

ALDESLEUKIN

Manufacturer

Merck Sharp Dohme

Chiron

Dosage forms

Injectable

Drug class

Programmed Death Receptor-1 Blocking Antibody

Lymphocyte Growth Factor

Boxed warning

None

Boxed warning

Treats

Malignant Mesothelioma, Biliary Tract Neoplasms, Urinary Bladder Neoplasms

Renal Cell Carcinoma, Non-Hodgkin Lymphoma, Melanoma

Frequently asked questions

What is the difference between Keytruda and Proleukin?

Keytruda contains Pembrolizumab, while Proleukin contains Aldesleukin — 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.