TheraRadar
Data updated: May 26, 2026

COLAZAL (balsalazide disodium)

Immunology Approved 2000-07-18

Colazal helps patients five years of age and older who are experiencing mildly to moderately active ulcerative colitis. This medication is used to manage inflammation in the colon during active flares. Because long-term data is limited, it is typically prescribed for short durations, generally up to eight weeks for children and twelve weeks for adults.

Source: FDA Label • VALEANT PHARMS INTL

How COLAZAL Works

The drug works by traveling intact to the colon, where it is broken down by bacteria to release mesalamine, the active component. Once released, mesalamine exerts a local anti-inflammatory effect on colonic cells, likely by blocking the production of substances that drive inflammation in the gut.

2
Indications
--
Phase 3 Trials
1
Priority Reviews
25
Years on Market

Details

Status
Prescription
First Approved
2000-07-18
Patent Cliff
2027

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Routes
ORAL
Dosage Forms
CAPSULE

Companies

Active Ingredient: BALSALAZIDE DISODIUM

COLAZAL Approval History

2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
15 FDA actions from 2000 to 2023 · 1 indication expansions
Oct 2023 SUPPL
Label · Labeling
Nov 2022 SUPPL
Label · Labeling
Nov 2021 SUPPL
Label · Labeling

What COLAZAL Treats

1 indications

COLAZAL is approved for 1 conditions since its original approval in 2000. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Ulcerative Colitis
Source: FDA Label

COLAZAL Competitive Set

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Three rings of competition based on shared molecular targets and treated indications.

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Filters applied: drops same-active-ingredient (505(b)(2) reformulations), route-mismatch (topical vs systemic), and cross-therapeutic-area matches in same-indication rings.

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Active Pipeline

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Key Completed Trials

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Completed studies with published results, ranked by significance

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

COLAZAL FDA Label Details

Indications & Usage

FDA Label (PDF)

COLAZAL is indicated for the treatment of Ulcerative Colitis.

View full patent landscape →
4 OB patents · 1 families · 7 international docs across 1 countries

COLAZAL Patents & Exclusivity

Latest Patent: Feb 2027

Patents (4 active)

US7452872*PED Expires Feb 24, 2027
US7625884*PED Expires Feb 24, 2027
US7625884 Expires Aug 24, 2026
US7452872 Expires Aug 24, 2026
Source: FDA Orange Book

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Deep insights for COLAZAL

Revenue Insights

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  • Historical trend analysis

Patent Timeline

  • Cliff: 2027
  • 4 active patents

Trial Analysis

  • Clinical trial tracking
  • Development stage analysis

Competitive Landscape

  • 20 similar drugs
  • Same target/indication analysis
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Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.