Othello syndrome describes a form of psychosis in which one has delusional thoughts about their partner having an affair or similar relationship that does not exist. They may misinterpret ‘clues’ to support this delusion.
Delusions and hallucinations can be seen with certain psychiatric disorders and in the setting of Parkinson’s disease with the following conditions:
-High dose dopamine medicines especially dopamine agonists, amantadine and selegiline
-Other medicines that can cause confusion such as anticholinergics, muscle relaxants and pain medicines (narcotics)
-Illicit (street) drugs)Cognitive problems suggestive of dementia
-Coexisting medical conditions such as thyroid disease, vitamin deficiency (B12),infection or dehydration
-Reducing medicines when possible
-Occupational therapy evaluation to analyze how someone is taking medicines and help family administer medicines in the event the person with PD is taking more than prescribed
-Antipsychotic medicines- namely clozaril or quetiapine
-Cognitive enhancing medicines such as rivastigmine
-Counseling and psychiatric evaluation to evaluate for other conditions
-There is little evidence to date about the effect of a new antipsychotic.
-A combined neurology and psychiatry evaluation may be needed for this difficult problem.
See related article on hallucinations