AAN 2026: Switch to Vyalev stops troublesome dyskinesia in trial
A new medication called Vyalev helped people with Parkinson's disease stop experiencing unwanted, uncontrolled movements (called dyskinesia) when they switched to it from other Parkinson's drugs. In two clinical trials, most people saw these troublesome movements go away within a few months of starting Vyalev. This is good news because dyskinesia is a common side effect that happens after taking Parkinson's medications for a long time.