69-y Parkinson male. Took (Piribedil Sustained-release Tablets;Levodopa and Benserazide)for 9 yrs. Recently drug-resistant (cant lift legs), suggestions?

Please repost. Your dad maybe? Piribedil & bensazeride are not available in the US. Where does 69 live? In US or abroad? If he lives here, will he continue to make his US neurologist's life more diffcult by insisting on using foreign drugs? If he lives abroad, getting advice from a US neurologist is pointless if the US & foreign drugs aren't the same. You need to clarify.