CAMPTOSAR vs VALCHLOR

Independent side-by-side comparison.

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

Possible drug interaction. CAMPTOSAR and VALCHLOR 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	CAMPTOSAR	VALCHLOR
Rating	64/100	New
Pharmacy pays	—	—
Type	RX	RX
Active ingredient	IRINOTECAN HYDROCHLORIDE	MECHLORETHAMINE HYDROCHLORIDE
Manufacturer	Pfizer	Helsinn
Dosage forms	Injectable	Topical
Drug class	Topoisomerase Inhibitor	—
Boxed warning	Boxed warning	None
Treats	Breast Neoplasms, Non-Small-Cell Lung Carcinoma, Colonic Neoplasms	Hodgkin Disease, Mycosis Fungoides, Neoplasm Metastasis

camptosar valchlor

Rating

64/100

New

Pharmacy pays

—

Type

Active ingredient

IRINOTECAN HYDROCHLORIDE

MECHLORETHAMINE HYDROCHLORIDE

Manufacturer

Pfizer

Helsinn

Dosage forms

Injectable

Topical

Drug class

Topoisomerase Inhibitor

—

Boxed warning

None

Treats

Breast Neoplasms, Non-Small-Cell Lung Carcinoma, Colonic Neoplasms

Hodgkin Disease, Mycosis Fungoides, Neoplasm Metastasis

Frequently asked questions

What is the difference between Camptosar and Valchlor?

Camptosar contains Irinotecan Hydrochloride, while Valchlor contains Mechlorethamine Hydrochloride — 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.