ATENOLOL AND CHLORTHALIDONE vs COLAZAL

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated October 7, 2026·How we rate

Possible drug interaction. ATENOLOL AND CHLORTHALIDONE 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	ATENOLOL AND CHLORTHALIDONE	COLAZAL
Rating	66/100	74/100
Pharmacy pays	~$0.76 /30	~$11.02 /30
Type	RX	RX
Active ingredient	ATENOLOL AND CHLORTHALIDONE	BALSALAZIDE DISODIUM
Manufacturer	Aurobindo Pharma Ltd	Valeant Pharm Intl
Dosage forms	Tablet	Capsule
Drug class	—	Aminosalicylate
Boxed warning	None	None
Half-life	about 40 hours on average (the label reports a mean half-life of 40 hours after a 50–200 mg dose, and an elimination half-life of 53 hours after 50 mg and 60 hours after 100 mg)	—
Treats	—	Ulcerative Colitis

atenolol and chlorthalidone colazal

Rating

66/100

74/100

Pharmacy pays

~$0.76 /30

~$11.02 /30

Type

Active ingredient

ATENOLOL AND CHLORTHALIDONE

BALSALAZIDE DISODIUM

Manufacturer

Aurobindo Pharma Ltd

Valeant Pharm Intl

Dosage forms

Tablet

Capsule

Drug class

—

Aminosalicylate

Boxed warning

None

Half-life

about 40 hours on average (the label reports a mean half-life of 40 hours after a 50–200 mg dose, and an elimination half-life of 53 hours after 50 mg and 60 hours after 100 mg)

—

Treats

—

Ulcerative Colitis

Frequently asked questions

Which is better-rated, Atenolol and Chlorthalidone or Colazal?

By our independent rating, Colazal scores higher — 3.7 vs 3.3 out of 5 for Atenolol and Chlorthalidone. Ratings are based on FDA regulatory (recall-safety) data.

Which is cheaper, Atenolol and Chlorthalidone or Colazal?

Atenolol and Chlorthalidone costs pharmacies less to acquire — about $0.76 vs $11.02 for a 30-count supply, per the CMS NADAC survey. That gap is in the pharmacy's cost of goods, not necessarily in what you pay: your price is set afterwards by your insurer and the pharmacy.

What is the difference between Atenolol and Chlorthalidone and Colazal?

Atenolol and Chlorthalidone contains Atenolol and Chlorthalidone, 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.