IRCT201205099697N1 IRCT 2015-01-27 Golestan University of Medical Sciences Assessment of the effects of diclofenac suppository and intravenous acetaminophen, and the combination of them, on postoperative pain in patients undergoing spinal anesthesia for cesarean section - The effects of diclofenac suppository and intravenous acetaminophen, and the combination of them, on postoperative pain in patients undergoing spinal anesthesia for cesarean section 2014-04-03 anticipated 90 Complete https://irct.ir/trial/10257 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Other design features: Samples receiving medicine will be divided into three groups with simple random sampling method. 3 َAcute Pain. Intervention 1: Diclofenac suppositories 100 mg, based on average pain severity of patients evaluated at Hour 0, 2, 4, 6, 12, 24 after local anesthetic in the recovery unit, will be prescribed. Aboureihan Pharmaceutical product. Intervention 2: intravenous acetaminophen 1000mg، based on average pain severity of patients evaluated at Hour 0, 2, 4, 6, 12, 24 after local anesthetic in the recovery unit, will be prescribed. Daroupakhsh Pharmaceutical product. Intervention 3: Combination of diclofenac suppository 100 mg and 500 mg intravenous acetaminophen, based on average pain severity of patients at hour 0, 2, 4, 6, 12, 24 post-local anesthetic in recovery unit, will be prescribed. Aboureihan and DarouPakhsh pharmaceutical products.