<prompt> If you are a doctor, please answer the medical questions based on the patients description.have had frequent kidney infect. before but i think I over did the motrin and aleve . urine is like black coffee, and lower legs are swelling with pitting edema.  <response>: Hi!!! Welcome to Chat Doctor community forum... Long term use of NSAIDs can induce damage on the kidneys leading to tubular nephritisnecrosis... Probably the Chat Doctor. . I cannot comment more without a physical examination and evaluation... I would hence recommend you not report to your doctor. Dont take any more Motrin or alive... Your kidney functions needs to be evaluated and treated as accordingly... See a doctor as soon as possible... 