TheraRadar
Data updated: Mar 29, 2026

STALEVO 75

CARBIDOPA DOPA Decarboxylase Inhibitors
Neurology Approved 2003-06-11

Stalevo 75 is a combination product containing levodopa, carbidopa, and entacapone indicated for the treatment of patients with Parkinson's disease. It is specifically used to replace carbidopa/levodopa and entacapone therapy, or to treat patients experiencing "wearing-off" (end-of-dose motor fluctuations) on their current levodopa/carbidopa regimen. By combining a metabolic precursor (levodopa) with two decarboxylase inhibitors (carbidopa and the COMT-inhibitor entacapone), the medication provides more sustained plasma levels of levodopa, leading to improved motor control and reduced "off" time compared to levodopa/carbidopa alone.

Source: FDA Label • ORION PHARMA • Aromatic Amino Acid Decarboxylation Inhibitor

How STALEVO 75 Works

Parkinson’s disease symptoms result from dopamine depletion in the corpus striatum. While levodopa crosses the blood-brain barrier to be converted into dopamine, it is heavily metabolized in the periphery. Stalevo utilizes a three-pronged approach: 1. **Levodopa** serves as the metabolic precursor to dopamine. 2. **Carbidopa** inhibits aromatic amino acid decarboxylase, preventing the peripheral conversion of levodopa to dopamine. 3. **Entacapone** is a selective and reversible inhibitor of catechol-O-methyltransferase (COMT). When carbidopa inhibits decarboxylation, COMT becomes the major metabolizing pathway for levodopa. By inhibiting COMT, entacapone further slows the clearance of levodopa from the plasma, resulting in higher and more sustained serum levels of levodopa available to enter the central nervous system.

1
Indication
--
Phase 3 Trials
22
Years on Market

Details

Status
Prescription
First Approved
2003-06-11
Routes
ORAL
Dosage Forms
TABLET

Companies

Active Ingredient: CARBIDOPA , ENTACAPONE , LEVODOPA

STALEVO 75 Approval History

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What STALEVO 75 Treats

3 indications

STALEVO 75 is approved for 3 conditions since its original approval in 2003. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Parkinson's Disease
  • Post-Encephalitic Parkinsonism
  • Symptomatic Parkinsonism
Source: FDA Label

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Trial Timeline

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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.

STALEVO 75 FDA Label Details

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Indications & Usage

FDA Label (PDF)

Carbidopa and levodopa tablets are indicated in the treatment of Parkinson's disease, post-encephalitic parkinsonism, and symptomatic parkinsonism that may follow carbon monoxide intoxication or manganese intoxication. Carbidopa allows patients treated for Parkinson's disease to use much lower doses of levodopa. Some patients who responded poorly to levodopa have improved on carbidopa and levodopa tablets. This is most likely due to decreased peripheral decarboxylation of levodopa caused by administration of carbidopa rather than by a primary effect of carbidopa on the nervous system. Carbidop...

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Data Sources

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