My mom was diagnosed with Left Ventricular Dysfunction last year, and about the same time that she started on her meds from her cardiologist (Coreg, Diovan, Lasix, Isosorbide) is when her behavior changes really came to the forefront. A couple of days after being on her meds, she woke me up at 11 pm one night to come sit in the front room and 'wait for the mailman... he was bringing a package.' She truly believed the mailman was bringing a package at that time of night.

Not long after that is when she started believing that she had been living somewhere else, and now believes that she has left and come back several times.

I have tried to find information about side effects from the heart meds, and even went so far as to call her doc's nurse....all that got was her doctor asking her questions about her memory and telling her that a family member had been calling 'concerned' and told her who called. I paid for that for over a month. I honestly believe that there is some sort of side effect with some of these heart meds that causes dementia-like symptoms, but I can't find ANYTHING anywhere with similiar cases.