Abstract
For the reduction of pain and improvement of the quality of life of both patients with cancer and their families, the most important role for the medical practitioner is to relieve the physical pain caused by cancer. The gold standard for the management of cancer pain is the WHO method reported in 1986, and pain relief can be achieved with medication for about 80% of patients. If side effect-control measures are taken and appropriate analgesics for pain intensity and mechanism are prescribed, oral medication can provide sufficient analgesic effects with patient-controlled analgesia without requiring selection of a disease stage and a treatment place.
