IMPORTANT NOTE: The following information is intended to supplement, not substitute for, the expertise and judgment of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that use of the drug is safe, appropriate or effective for you. Consult your healthcare professional before using this drug.
Table of Contents
- Uses and How to Use
- Dosage and Storage
- Precautions and Side Effects
- Drug Interactions
- Drug Images
Pronounced: (doh-NEP-eh-zil)
Aricept Oral Side Effects
Nausea, vomiting, diarrhea, loss of appetite, tiredness, drowsiness, trouble sleeping, or muscle cramps may occur as your body adjusts to the drug. These effects usually last 1-3 weeks and then subside. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor immediately if any of these unlikely but serious side effects occur:
- mental/mood changes (depression)
- slow/irregular heartbeat
- fainting
- vision problems
- more frequent urination/trouble urinating
- weight loss
Tell your doctor immediately if any of these rare but very serious side effects occur:
- black stools
- vomit that looks like coffee grounds
- severe stomach/abdominal pain
- seizures
A very serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction may include:
- rash
- itching/swelling (especially of the face/tongue/throat)
- severe dizziness
- trouble breathing
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Aricept Oral Precautions
Before taking donepezil, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of:
- breathing problems (e.g., asthma, chronic obstructive pulmonary disease)
- heart disease (heart conduction disorders)
- seizures
- stomach/intestinal disease (e.g., ulcers, bleeding)
- trouble urinating (e.g., enlarged prostate)
This drug may make you drowsy or cause vision problems. Do not drive, use machinery, or do any activity that requires alertness or clear vision until you are sure you can perform such activities safely. Limit alcoholic beverages.
Before having surgery, tell your doctor or dentist that you are taking this medication.
This medication should be used only when clearly needed during pregnancy. Discuss the risks and benefits with your doctor.
It is not known whether this drug passes into breast milk. Consult your doctor before breast-feeding.
Aricept Oral Medical Alert
Your condition can cause complications in a medical emergency. For enrollment information call MedicAlert at 1-800-854-1166 (USA) or 1-800-668-1507 (Canada).
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CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.
Copyright 2007 First DataBank, Inc.

