Can too much seroquel XL cause a person to act sort of like they have dementia and inappropriate behaviors?

Yes, excessive use of Seroquel XL (quetiapine) can lead to cognitive impairments and behavioral changes that may mimic dementia. Side effects such as sedation, confusion, and altered mental status can occur, particularly at higher doses. Additionally, some individuals may exhibit inappropriate behaviors due to the drug's sedative effects or its influence on mood and cognition. It's important for anyone experiencing these symptoms to consult their healthcare provider for proper evaluation and management.