Several blood pressure and heart-related medications have just been prescribed for my mother. She started taking them last night and she has been hallucinating today. She is in and assisted living facility, but today she thought I had been there and left without telling her I was leaving. She was panicking because she thought she was alone. When I told her that I was still at work, she couldn't understand how that was possible. Could this be caused by the new medications? To my knowledge, she hasn't had any hallucinations in months prior to today.