Graduate Pharmacy Aptitude Test (GPAT) 2006 Solved Paper

Question : 13 of 85

Marks: +1, -0

A 80 years old lady suffering from osteoarthritis of hip and knee joints is given diclofenac 50‌mg thrice daily and paracetamol 1‌gm asrequire. She complains of passing black stools. This symptom is due to