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istradefylline

Adenosine A2A Receptor Antagonist · Parkinson's disease treatment

Adenosine A2A Receptor AntagonistParkinson's disease treatment
CDSCO approved
EXCRETION
not curated
INTERACTIONS
12 major
SEVERE in our sources
PREGNANCY
not curated
Top interactionssee all 12
  • AmprenavirSevereDatabaseDDInter
  • ApalutamideSevereDatabaseDDInter
  • AtazanavirSevereDatabaseDDInter
  • BoceprevirSevereDatabaseDDInter

Mechanism

Enhances D2 receptor signaling through blocking D2 receptor inhibition by the A2A receptor.

Indications

Parkinson's disease (adjunctive therapy with L-DOPA)adjunctive therapy with l-DOPA for Parkinson's diseaseAdjunctive treatment for off periods in PDMay help nonmotor symptoms such as urinary dysfunction, daytime sleepiness, and cognitive impairment

Side effects

Common
hallucinationsnauseadizziness

Drug interactions

Amprenavir
Severe
Database

Drug interaction classified as: metabolism

Source: DDInter

Apalutamide
Severe
Database

Drug interaction classified as: metabolism

Source: DDInter

Atazanavir
Severe
Database

Drug interaction classified as: metabolism

Source: DDInter

Boceprevir
Severe
Database

Drug interaction classified as: metabolism

Source: DDInter

Carbamazepine
Severe
Database

Drug interaction classified as: metabolism

Source: DDInter

Ceritinib
Severe
Database

Drug interaction classified as: metabolism

Source: DDInter

Clarithromycin
Severe
Database

Drug interaction classified as: metabolism

Source: DDInter

Cobicistat
Severe
Database

Drug interaction classified as: metabolism

Source: DDInter

Colchicine
Severe
Database

Drug interaction classified as: excretion

Source: DDInter

Conivaptan
Severe
Database

Drug interaction classified as: metabolism

Source: DDInter

Delavirdine
Severe
Database

Clinical effect not specified

Source: DDInter

Enzalutamide
Severe
Database

Drug interaction classified as: metabolism

Source: DDInter

Related guidelines

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Sources: Goodman & Gilman 14e·Verified: 2026-05-10 · House clinical team