A systematic review of subcutaneous versus intramuscular or intravenous routes of opioid administration on pain outcomes in cancer and post-surgical clinical populations - challenging current assumptions in palliative care practice.

Pain management is a critical role of palliative medicine. The subcutaneous route of administration offers a viable option for the delivery of parenteral analgesia within all settings, including the community. This review supports current practice, demonstrating equivalence with more invasive routes of administration.