Overview The Use of Low Dose Prophylactic Naloxone Infusion to Prevent Respiratory Depression With Intrathecal Morphine. Status: Completed Trial end date: 2017-12-01 Target enrollment: Participant gender: Summary This is an investigator led, randomised, double blind, placebo controlled, double arm comparator study. Phase: Phase 4 Details Lead Sponsor: University College DublinTreatments: MorphineNaloxone