hi there im a new member...my mum was diagnosed with alzheimers 3 years ago and was prescibed aricept. things have been ok for 2 years but the last 6 months everything has gone downhill. mum has forgotten my dad me and my sister, she thinks my dad is a stranger. she has also become very depressed as she is still aware of what is happening to her..this is so upsetting for all of us i didnt realise that things could deteriorate so quickly.. any advice please x