If he’s been experiencing more Parkinson’s symptoms, it seems odd that he’s tapering off Madopark – he probably needs it to feel well. There are various ways you can feel unwell if you have Parkinson’s and stop taking Madopark. It’s not really withdrawal, but rather symptoms returning or new signs of a dopamine deficiency. From your description, it sounds as though he should start taking the medicine again; I assume his doctor thinks so too? /Dag Nyholm