COLAZAL vs NULIBRY

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated October 5, 2026·How we rate

Possible drug interaction. COLAZAL and NULIBRY 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	NULIBRY
Rating	74/100	New
Pharmacy pays	~$11.02 /30	—
Type	RX	RX
Active ingredient	BALSALAZIDE DISODIUM	FOSDENOPTERIN HYDROBROMIDE
Manufacturer	Valeant Pharm Intl	Sentynl Theraps Inc
Dosage forms	Capsule	Injectable
Drug class	Aminosalicylate	Cyclic Pyranopterin Monophosphate
Boxed warning	None	None
Treats	Ulcerative Colitis	Inborn Errors Metal Metabolism

colazal nulibry

Rating

74/100

New

Pharmacy pays

~$11.02 /30

—

Type

Active ingredient

BALSALAZIDE DISODIUM

FOSDENOPTERIN HYDROBROMIDE

Manufacturer

Valeant Pharm Intl

Sentynl Theraps Inc

Dosage forms

Capsule

Injectable

Drug class

Aminosalicylate

Cyclic Pyranopterin Monophosphate

Boxed warning

None

Treats

Ulcerative Colitis

Inborn Errors Metal Metabolism

Frequently asked questions

What is the difference between Colazal and Nulibry?

Colazal contains Balsalazide Disodium, while Nulibry contains Fosdenopterin Hydrobromide — 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.