<s>[INST] My father is 70 year old and is suffering from Parkinson's disease since 7 years. He used to take Syndropa CR, Ropark 0.5 and Parkin 2mg and Entacom as medicine. For last few days he has development a new symptoms of talking wrong imaginary things. Is this common to parkinson disease. [/INST] there are 2 possibilitiesa. this may be a part of the dementia. the dementia may make the person talk irrelevently. the dementia is present in a large number of patients and often it comes late. b. may be an effect of the medications, the dopamine based medicines may have simlar effects. it is known to cause such symptoms.best to meet a neurologist for the readjustment of the dose.Best of luckDr Mittal </s>