ANTRENYL vs COLAZAL

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated October 6, 2026·How we rate

Possible drug interaction. ANTRENYL and COLAZAL 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	ANTRENYL	COLAZAL
Rating	70/100	74/100
Pharmacy pays	—	~$11.02 /30
Type	RX	RX
Active ingredient	OXYPHENONIUM BROMIDE	BALSALAZIDE DISODIUM
Manufacturer	Novartis	Valeant Pharm Intl
Dosage forms	Tablet	Capsule
Drug class	—	Aminosalicylate
Boxed warning	None	None
Treats	—	Ulcerative Colitis

antrenyl colazal

Rating

70/100

74/100

Pharmacy pays

—

~$11.02 /30

Type

Active ingredient

OXYPHENONIUM BROMIDE

BALSALAZIDE DISODIUM

Manufacturer

Novartis

Valeant Pharm Intl

Dosage forms

Tablet

Capsule

Drug class

—

Aminosalicylate

Boxed warning

None

Treats

—

Ulcerative Colitis

Frequently asked questions

Which is better-rated, Antrenyl or Colazal?

By our independent rating, Colazal scores higher — 3.7 vs 3.5 out of 5 for Antrenyl. Ratings are based on FDA regulatory (recall-safety) data.

What is the difference between Antrenyl and Colazal?

Antrenyl contains Oxyphenonium Bromide, while Colazal contains Balsalazide Disodium — 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.