Alzheimer Dementia (AD) is known as the most common cause of degenerative dementias that decrease patient life expectancy, quality of life and increase caregivers burden. Objective: To determine the evolution of cognitive and non-cognitive symptoms under donepezil treatment and to evaluate the impact of these symptoms evolution over the caregivers.

This prospective, open-label, trial included a group of 56 patients, 34 male and 22 female, mean age 72.4, diagnosed with AD according to DSM-IV-TR criteria. Patients received either donepezil (n= 30) or 1400 UI/day mean dose of vitamin E (n=26). We evaluated these patients monthly during 1 year using Mini-Mental State Examination (MMSE), AD Assessment Scale (ADAS), Hamilton Depression Rating Scale (HAMD)-17 items, Brief Psychiatric Rating Scale (BPRS)- 18 items, Global Assessment of Functioning Scale (GAF), Burden Interview (BI).

Patients presented significant better evolution under donepezil on cognitive symptoms as scores evolution on ADAS-Cognitive behavior subscale (+1.5+/-0.2 vs. +10.4+/-0.8, p<0.0001) and MMSE (-0.8+/-0.2 vs. –7.7+/-0.4, p<0.0001) reflected. The non-cognitive symptoms evolution was also better under donepezil treatment, as the ADAS-Noncognitive behavior subscale (+2.6+/-0.4 vs. +8.2+/-0.7, p<0.0001), HAMD (increases of 4.5 vs. 8.2, p<0.001) and BPRS (increases of 6.7 vs.14.2, p<0.0001) reflected. The evolution of GAF was better in the donepezil group (-10.5 vs. –27.5, p<0.0001) and the burden of caregivers was significant less in the same group (+10.2 vs. +30.8 on BI, p<0.0001).

Donepezil is efficient in controlling both cognitive and non-cognitive symptoms in mild to moderate AD and therefore it decreases also the caregivers burden.