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Aricept and Drowsiness: What Users Say

Drowsiness: mentioned by 3 users (5.3%)

Based on user experiences from 57 Aricept reviews, the following table shows the most commonly mentioned side effects.

All user comments are moderated by Drugs.com. Each review is verified for relevance and screened for inappropriate content. Side effects are user-reported and not clinically verified.

vivid dreams 15.8%
diarrhea 12.3%
confusion 8.8%
headaches 7.0%
insomnia 7.0%
constipation 5.3%
cramps 5.3%
drowsiness 5.3%
hallucinations 5.3%
tiredness 5.3%

Reviews for Aricept

  • cjr...
  • September 13, 2010

For Alzheimer's Disease "Two years ago my mom used 5mg of Aricept for one month. She became almost a total zombie taking this medicine. She would not get out of bed, and her mind was a lot worse than before she started taking it. A month ago, she was put on 10mg of Aricept, and after two doses, she was taken to the hospital. She was totally out of control and knew nothing of what was going on. It is not for everyone."

1 / 10
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  • the...
  • October 27, 2011

For Alzheimer's Disease "In 2000, my mother suffered persistent diarrhea with this medicine, could not get rid of it until the medicine was stopped. My mother-in-law had the same problem this year. She also had delusions and paranoia, which have been almost eliminated by a medicine she started a month ago, Risperidone. If you try Risperidone, start with the lowest dose, it makes her very sleepy, and a side effect is a depressed heart rate, which can be dangerous. It also stimulates appetite, which was good for Mom, she was losing 1-2 pounds per week, but the doctor cautioned against excess weight gain and concerns regarding diabetes. We're going to try 100 mg niacin, I've read that it can help cognitive function. Even when they don't know your name, they know when they are loved. Show them."

3 / 10
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  • Ano...
  • Taken for less than 1 month
  • September 13, 2025

For Alzheimer's Disease "Side effects, headaches, achy joints and bones, drowsiness."

2 / 10
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Reviews may be edited to correct grammar/spelling or remove inappropriate content. Reviews appearing to come from parties with a vested interest are not published. This information is not intended to endorse any medication and should not replace the expertise and judgment of healthcare professionals.