Parkinson's medicinePrescription only
Levodopa-Carbidopa
Tablet
Quick Summary
Levodopa is turned into dopamine in the brain; carbidopa helps more reach the brain and reduces nausea.
Parkinson's disease
Medical Uses
Parkinson's disease: Improves slowness, stiffness and tremor.
How it's taken
Take at regular times; protein-rich meals can reduce its effect, so time doses as advised.
Your doctor decides the right dose for you. Follow their instructions and the label.
Common Side Effects
Nausea
Especially at first.
Involuntary movements
After years of use.
Dizziness
Low blood pressure.
Interactions
Antipsychotics
Block its effect.
Iron
Reduces absorption.
Critical Warnings
Don't stop suddenly
Black Box Warning: Can cause a dangerous reaction.
Impulse control
Report gambling, shopping or other urges.
Sources and further reading
Last updated 21 October 2026. For more detail, see these trusted health organisations.
- Levodopa and Carbidopa: drug information(opens in a new tab) · MedlinePlus, US National Library of Medicine