CLARINEX D 24 HOUR vs COLAZAL

Independent side-by-side comparison.

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

Possible drug interaction. CLARINEX D 24 HOUR 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	CLARINEX D 24 HOUR	COLAZAL
Rating	72/100	74/100
Pharmacy pays	~$8.91 /30	~$11.02 /30
Type	RX	RX
Active ingredient	DESLORATADINE AND PSEUDOEPHEDRINE SULFATE	BALSALAZIDE DISODIUM
Manufacturer	Organon	Valeant Pharm Intl
Dosage forms	Tablet, extended release	Capsule
Drug class	—	Aminosalicylate
Boxed warning	None	None
Half-life	roughly 3 to 16 hours — the label does not give one number, because the elimination half-life depends on urine pH: about 3 to 6 hours when urine pH is 5 (acidic), and about 9 to 16 hours when urine pH is 8 (alkaline)	—
Treats	—	Ulcerative Colitis

clarinex d 24 hour colazal

Rating

72/100

74/100

Pharmacy pays

~$8.91 /30

~$11.02 /30

Type

Active ingredient

DESLORATADINE AND PSEUDOEPHEDRINE SULFATE

BALSALAZIDE DISODIUM

Manufacturer

Organon

Valeant Pharm Intl

Dosage forms

Tablet, extended release

Capsule

Drug class

—

Aminosalicylate

Boxed warning

None

Half-life

roughly 3 to 16 hours — the label does not give one number, because the elimination half-life depends on urine pH: about 3 to 6 hours when urine pH is 5 (acidic), and about 9 to 16 hours when urine pH is 8 (alkaline)

—

Treats

—

Ulcerative Colitis

Frequently asked questions

Which is better-rated, Clarinex D 24 Hour or Colazal?

By our independent rating, Colazal scores higher — 3.7 vs 3.6 out of 5 for Clarinex D 24 Hour. Ratings are based on FDA regulatory (recall-safety) data.

Which is cheaper, Clarinex D 24 Hour or Colazal?

Clarinex D 24 Hour costs pharmacies less to acquire — about $8.91 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 Clarinex D 24 Hour and Colazal?

Clarinex D 24 Hour contains Desloratadine and Pseudoephedrine Sulfate, 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.