COLAZAL vs LONSURF

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated September 27, 2026·How we rate

Possible drug interaction. COLAZAL and LONSURF 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	COLAZAL	LONSURF
Rating	74/100	New
Pharmacy pays	~$11.09 /30	—
Type	RX	RX
Active ingredient	BALSALAZIDE DISODIUM	TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE
Manufacturer	Valeant Pharm Intl	Taiho Oncology
Dosage forms	Capsule	Tablet
Drug class	Aminosalicylate	—
Boxed warning	None	None
Treats	Ulcerative Colitis	—

colazal lonsurf

Rating

74/100

New

Pharmacy pays

~$11.09 /30

—

Type

Active ingredient

BALSALAZIDE DISODIUM

TIPIRACIL HYDROCHLORIDE AND TRIFLURIDINE

Manufacturer

Valeant Pharm Intl

Taiho Oncology

Dosage forms

Capsule

Tablet

Drug class

Aminosalicylate

—

Boxed warning

None

Treats

Ulcerative Colitis

—

Frequently asked questions

What is the difference between Colazal and Lonsurf?

Colazal contains Balsalazide Disodium, while Lonsurf contains Tipiracil Hydrochloride and Trifluridine — 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.