Patienter med demens, der er associeret med Parkinsons sygdom oplever visse bivirkninger oftere, samt visse yderligere bivirkninger: rysten (meget almindelig), søvnbesvær, angst, rastløshed, forværring af Parkinsons sygdom eller udvikling af lignende symptomer (muskelstivhed, besvær med at igangsætte kroppens bevægelser), unormalt langsomme eller ukontrollerede bevægelser, langsom hjerterytme, for meget spyt og dehydrering (almindelig), uregelmæssig hjerterytme og ringe kontrol over bevægelser (ikke almindelig).
Patients with dementia associated with Parkinson’ s disease experience some side effects more frequently and also some additional side effects: trembling (very common), difficulty in sleeping, anxiety, restlessness, worsening of Parkinson’ s disease or development of similar symptoms (muscle stiffness, difficulty in carrying out movements), abnormally slow or uncontrollable movements, slow heart beat, too much saliva and dehydration (common), irregular heart beat and poor control of movements (uncommon).