 In the investigators institute, during cesarean delivery under spinal anesthesia is usually performed with 1.6-1.8 ml of 0.75 bupivacaine with dextrose hyperbaric solution with 10-20mcg of fentanyl. Preservative free intrathecal IT morphine100 to 200 mcg is injected at the time of initiation of spinal block for postoperative pain relief. Multiple studies have shown excellent postoperative pain relief following cesarean delivery up to 18hrs with this dosing regimen. 