"i was given percocet recently after knee surgery.  after about the 4th dose, i felt hyper, restless, nauseous and had very dry mouth.  worst side effect was extreme throbbing/stabbing lower back pain.  i thought it was from just laying around but whenever i didn&#039;t take the percocet i didn&#039;t have the lower back pain.  great for pain, but for me it&#039;s not worth the side effects i experienced."