Background: To date, there has been no study that has analyzed the use of intravenous acetaminophen given preoperatively in scheduled cesarean deliveries. There have been studies in non-obstetrical surgical procedures that have demonstrated better pain scores and less use of opiates post surgery when administered preoperatively. If these study findings were found to be equally effective post-cesarean delivery, then fewer opiates would be used by the mother. This would benefit better ambulation and less bowel dysfunction by the mother and less effect on the newborn if the mother is breast-feeding. Acetaminophen is one the drugs of choice for analgesia in obstetrics, because it has no known effects on the mother or fetus/newborn. The drug has been found to be safe when given intravenously. Likewise, more patients are found to have therapeutic levels when the drug is given intravenously versus oral administration. Lastly, since patients are NPO prior to scheduled surgery, giving a medication orally is not recommended. Of the prospective blinded studies performed to date, small numbers have been used ranging from 20 to 28 in each arm. Intravenous acetaminophen is already being used preoperatively for scheduled cesarean sections at UT Medical Center Labor & Delivery and the presumption by the nursing staff is that the patients who receive this "do better" post-delivery (with less pain and less need for oral opiates), but without a blinded placebo-controlled trial, this finding cannot be proven or reported.