Hi, My Grandfather (82 Year) diagnosed Parkinson's in 2018...only low tremors in hand but now started in both hands and tremors and he can't sleep at night. last year he stated SINEMENT (Carbidopa 25mg/Levodopa250mg) but last 6 month he stopped.....and tremors stated more in both hands....now Doctor prescribed XADAGO 50mg with SINEMENT.my queries are can any one taking this? Can any other alternative medicine available? I appreciate your help and suggestions.