Get emergency medical help if you have signs of an allergic reaction to Aricept: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Stop using Aricept and call your doctor at once if you have:
severe or ongoing vomiting;
a light-headed feeling, like you might pass out;
slow heartbeats;
seizure (convulsions);
painful or difficult urination;
new or worsening breathing problems; or
signs of stomach bleeding--severe heartburn or stomach pain, bloody or tarry stools, coughing up blood or vomit that looks like coffee grounds.
Common Aricept side effects may include:
nausea, vomiting, diarrhea;
loss of appetite;
muscle pain;
sleep problems (insomnia); or
feeling tired;.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
 Aricept side effects (more detail)
