It's an NSAID, so side effects are similar to most NSAIDS,
mainly gastrointestinal (stomach erosions etc)...here's something
off the web:
"The most common side effects from ibuprofen are rash, ringing in
the ears, headaches, dizziness, drowsiness, abdominal pain, nausea,
diarrhea, constipation and heartburn. Ibuprofen may cause
ulceration of the stomach or intestine, and the ulcers may bleed.
Sometimes, ulceration and bleeding can occur without abdominal
pain, and black tarry stools, weakness, and dizziness upon standing
(orthostatic hypotension) may be the only signs of a problem.
NSAIDs reduce the flow of blood to the kidneys and impair function
of the kidneys. The impairment is most likely to occur in patients
with preexisting impairment of kidney function or congestive heart
failure, and use of NSAIDs in these patients should be done
cautiously. People who are allergic to other NSAIDs, including
aspirin, should not use ibuprofen. Individuals with asthma are more
likely to experience allergic reactions to ibuprofen and other
NSAIDs.."
There are recent reports of cardiovascular incidents with the use
of COXII inhibitor class of NSAIDS like Vioox but ibuprofen is not
one of them.
