How do members experience Opicapone? Top 5 reported purposes & perceived effectiveness Purpose Patients Evaluations Perceived Effectiveness This item is relevant to you: Parkinson's disease 4 2 0% 50% 0% 0% 50% Common side effects Side effect Patients Percentage Nausea 1 100% Vomiting 1 100% Side effect severity Side effects as an overall problem Severity Evaluations Percentage This item is relevant to you: Severe 0 0% This item is relevant to you: Moderate 1 50% This item is relevant to you: Mild 0 0% This item is relevant to you: None 1 50%