<s>[INST] my aunt just turned 93 years old today, she said her Dr. gave her new medication for her blood pressure. this is how she spelled it Donepezil, but when I tried to find it, its spelled Donetezil. Is one or both medications for alzheimer? She thinks it Blood pressure medication. [/INST] Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. I would explain that Donepezil is a medication used to treat Dementia. Considering your aunt's age and this medication prescribed, it is possible that she suffers from Dementia. This would also explain the fact that she does not remember why was this drug prescribed to her. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Iliri </s>