Meloxicam
"Was prescribed Meloxicam for knee pain following two surgeries to repair meniscus tears.  It truly was a wonder drug - knee pain practically gone - mobility increased.  Took it for approximately 4 months - 1 x 10 mg. tablet with breakfast.    AND THEN ... three weeks ago I woke up - couldn't stand up without fainting and had a tarry black stool.  Rushed to hospital.  Blood transfusions ... endoscopy revealed a bleeding duodenal ulcer.   I had no symptoms - no pain at all.   Gastroenterologist confirmed how dangerous this drug is - side effect of internal bleeding is very real.  I should have done more research before taking.   This is a dangerous drug - that unfortunately worked great to relieve knee pain - but almost killed me!"