Objective To study pain relief,quality of life improvement,adverse reactions on the equivalent dose of Morphine sustained release tablets and transdermal patch of fentanyl in treatment of patients with advanced gastrointestinal cancer pain.Methods One hundred and twenty patients was randomized divided into two groups with Pain Digital Grading(NRS)≥5.Same dose of morphine,transdermal patch of fentanyl was used in group A while Morphine sustained release tablets was used in group B.The pain relief,quality of ...