Follow all directions on your medicine label and package. Tell each of your healthcare providers about all your medical conditions, allergies, and all medicines you use.
Before taking this medicine
You should not use  donepezil if you are allergic to donepezil or certain other drugs. Tell your doctor if you are allergic to any medicines.
Tell your doctor if you have ever had:
a heart rhythm disorder;
a stomach ulcer;
urination problems;
asthma or other breathing disorder;
liver or kidney disease;
a seizure; or
trouble swallowing tablets.
Tell your doctor if you are pregnant or breast-feeding.
How should I take donepezil?
Follow all directions on your prescription label and read all medication guides or instruction sheets. Use the medicine exactly as directed.
You may take donepezil with or without food.
Swallow the regular tablet whole and do not crush, chew, or break it.
Remove an orally disintegrating tablet from the package only when you are ready to take the medicine. Place the tablet in your mouth and allow it to dissolve, without chewing. Swallow several times as the tablet dissolves. After the tablet dissolves completely, drink a glass of water.
If you need surgery or dental work, tell the surgeon or dentist ahead of time that you are using donepezil. You may need to stop using the medicine for a short time.
You should not stop using donepezil without your doctor's advice.
Store at room temperature away from moisture and heat.
What happens if I miss a dose?
Skip the missed dose and use your next dose at the regular time. Do not use two doses at one time.
If you miss your doses for more than 7 days in a row, call your doctor before taking the medicine again.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
Overdose symptoms may include severe nausea, vomiting, drooling, sweating, blurred vision, feeling light-headed, slow heartbeat, shallow breathing, muscle weakness, fainting, or seizure (convulsions).
