What side effects can this medication cause?

Aspirin may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:

* nausea
* vomiting
* stomach pain
* heartburn

Some side effects can be serious. If you experience any of the following symptoms, call your doctor immediately:

* hives
* rash
* swelling of the eyes, face, lips, tongue, or throat
* wheezing or difficulty breathing
* hoarseness
* fast heartbeat
* fast breathing
* cold, clammy skin
* ringing in the ears
* loss of hearing
* bloody vomit
* vomiting material that looks like coffee grounds
* bright red blood in stools
* black or tarry stools

Aspirin may cause other side effects. Call your doctor if you experience any unusual problems while you are taking this medication.