My father has been on arricept for 10 years , over which period there has been a gradual decline , however 3 weeks ago the GP , without discussing with the family , ( dad is in a care centre for dementia) withdrew the Arricept and since then There has been a huge decline in dads health , he now sleeps nearly all the time and has become very unsteady on his feet, whereas previously this was not an issue , he has had 2 falls on 2 days , his appetite has declined and over the last 4 months has lost 4 kgs . Advice would be appreciated . I appreciate this could be coincidental or has anyone had similar experiences , thank you a concerned daughter jacqui