Answer
No. It is licensed as an add-on to levodopa combined with a DOPA decarboxylase inhibitor and has no useful Parkinson’s effect by itself.
Sources for this answer
- Ongentys 50 mg hard capsules — Current selected SmPCemc · Summary of Product Characteristics
- NHSNHS · NHS medicine guidance
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.