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Opicapone Dosage

Medically reviewed by Last updated on Aug 3, 2021.

Applies to the following strengths: 25 mg; 50 mg

Usual Adult Dose for Parkinson's Disease

50 mg orally once a day at bedtime

Use: As adjunctive treatment to levodopa/carbidopa in patients with Parkinson's disease (PD) experiencing "off" episodes

Renal Dose Adjustments

Mild/moderate renal impairment: No adjustment recommended
Severe renal impairment: Monitor for adverse reactions and discontinue if tolerability issues arise
End stage (CrCl less than 15 mL/min) renal impairment: Use should be avoided

Liver Dose Adjustments

Mild hepatic impairment (Child-Pugh A): No adjustment recommended
Moderate hepatic impairment (Child-Pugh B): 25 mg orally once daily at bedtime
Severe hepatic impairment (Child-Pugh C): Use should be avoided

Dose Adjustments


  • Because this drug potentiates the effects of levodopa, dose reduction of levodopa or other dopaminergic drugs may mitigate dyskinesia

Drug discontinuation:
  • Upon discontinuation, monitor closely and adjust other dopaminergic therapies as needed



  • Concomitant use with non-selective monoamine oxidase (MAO-A and MAO-B) inhibitors
  • Pheochromocytoma, paraganglioma, or other catecholamine secreting neoplasms

Safety and efficacy have not been established in patients younger than 18 years.

Consult WARNINGS section for additional precautions.


Data not available

Other Comments

Administration advice:

  • Take orally once a day at bedtime
  • Patients should not eat food for 1 hour before and for at least 1 hour after intake

MISSED DOSE: If a dose is missed, take the next dose at the scheduled time the next day

Storage requirements:
  • Store at a temperature below 30C (86F)

  • This drug enhances the effects of levodopa; this drug has no antiparkinsonian effect of its own and must be administered with a levodopa/DOPA decarboxylase inhibitor (DDCI).

  • Cardiovascular: Monitor for signs and symptoms of orthostatic hypotension, particularly during dose escalation
  • Nervous System: Question patients about somnolence and drowsiness
  • Psychiatric: Question patients about new or increased gambling urges, sexual urges, uncontrolled spending, binge or compulsive eating, or other urges

Patient advice:
  • Patients should be instructed to read the US FDA-approved patient labeling (Patient Information).
  • Patients should understand that drug therapy for Parkinson's disease often causes dizziness, and drowsiness; patients should not drive a car or operate machinery or perform other potentially dangerous activities until it is determined how adding this drug affects their mental and/or motor performance.
  • Patients should be instructed to report episodes of new or worsening dyskinesia (tremors and involuntary muscle movements), and new or worsening compulsive behaviors and/or unusual urges.
  • Patients should be instructed to contact their healthcare provider before stopping this drug.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.