My mom is 63 and was recently diagnosed with early mild cognitive impairment. She is still very independent and able to do many things on her own, basically everthing. However, the neurologist prescribed her aricept first 5mg, which wasn't that bad about 2 months ago then after 4 weeks 10mg. She has been very depressed even more so than before, and lethargic and tired, and irritable. She says she hates it. We have an appointment with her doctor this week, but I would like to know other peoples experiences with this drug. Any information?