A Study on the Analgesic Effects of Two Different Doses of Morphine Added to Intrathecal Levobupivacaine in Cesarean Section: A Randomized Double-Blind Study

In this study, both 50 µg and 100 µg doses of intrathecal morphine provided effective and safe postoperative analgesia following elective cesarean section. However, the 100 µg dose demonstrated superior analgesia in terms of a reduced requirement for supplemental NSAIDs, rather than a difference in the time to first analgesic request. As this benefit was achieved without an increase in opioid-related side effects, 100 µg of intrathecal morphine may be the preferred dosage for post-cesarean analgesia.