Where is Ibuprofen metabolized?

ibuprofen is metabolized by the Kidneys and is thus excreted in the Urine. Actually, "...NSAIDs are metabolized by the liver via oxidative and conjugative pathways and have the potential to cause liver injury, with some agents being more hepatotoxic than others"

Source: http://www.uic.edu/pharmacy/services/di/liver.htm