• Exelon is used to treat the symptoms of mild to moderate Alzheimer's disease. It works by preventing the breakdown of a chemical called acetylcholine.

How should you take this medication?

• Take Exelon by mouth with food, usually twice daily in the morning and evening or as directed by your doctor.
   
• If you need to have any type of surgery, tell the surgeon ahead of time that you are taking Exelon. You may need to stop using the medicine for a short time.

• If you miss a dose of this medicine, take it as soon as possible. However, if you do not remember within a few hours, skip the missed dose and go back to your regular dosing schedule. Do not double doses.

General Precautions with Exelon

• Exelon may cause drowsiness, dizziness, blurred vision, or lightheadedness. Use caution engaging in activities requiring alertness such as driving or using machinery.

• Before you have any kind of surgery, dental treatment, or emergency treatment, tell the doctor medical doctor or dentist in charge that you are taking this medicine.

What are the possible side effects of Exelon?

• Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
   
• Check with your doctor if any of these common side effects persist or become bothersome:  loss of appetite, diarrhea, dizziness. drowsiness, weakness, headache,  headache, sweating, nausea, stomach pain vomiting.