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Data updated: Mar 10, 2026

TASMAR

TOLCAPONE Catechol O-Methyltransferase Inhibitors
Neurology Approved 1998-01-29
1
Indication
--
Phase 3 Trials
28
Years on Market

Details

Status
Prescription
First Approved
1998-01-29
Routes
ORAL
Dosage Forms
TABLET

Companies

Active Ingredient: TOLCAPONE

TASMAR Approval History

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What TASMAR Treats

1 indications

TASMAR is approved for 1 conditions since its original approval in 1998. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Parkinson's Disease
Source: FDA Label

TASMAR Boxed Warning

WARNING Because of the risk of potentially fatal, acute fulminant liver failure, TASMAR (tolcapone) should ordinarily be used in patients with Parkinson's disease on l-dopa/carbidopa who are experiencing symptom fluctuations and are not responding satisfactorily to or are not appropriate candidates for other adjunctive therapies (see INDICATIONS and DOSAGE AND ADMINISTRATION sections). Because of the risk of liver injury and because TASMAR, when it is effective, provides an observable symptomati...

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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.

TASMAR FDA Label Details

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Indications & Usage

FDA Label (PDF)

INDICATIONS: TASMAR is indicated as an adjunct to levodopa and carbidopa for the treatment of the signs and symptoms of idiopathic Parkinson's disease. Because of the risk of potentially fatal, acute fulminant liver failure, TASMAR (tolcapone) should ordinarily be used in patients with Parkinson's disease on l-dopa/carbidopa who are experiencing symptom fluctuations and are not responding satisfactorily to or are not appropriate candidates for other adjunctive therapies. Because of the risk of liver injury and because TASMAR, when it is effective, provides an observable symptomatic benefit, th...

โš ๏ธ BOXED WARNING

WARNING Because of the risk of potentially fatal, acute fulminant liver failure, TASMAR (tolcapone) should ordinarily be used in patients with Parkinson's disease on l-dopa/carbidopa who are experiencing symptom fluctuations and are not responding satisfactorily to or are not appropriate candidates ...

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Data Sources

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