Intrathecal Midazolam, Fentanyl and Nalbuphine as Adjuvants to Bupivacaine in Spinal Anesthesia for Cesarean Section

"patients will be put in the sitting position and lean forward. After sterilization, Dural puncture will be performed at L4-L5 interspace or L3-L4 with a 25 gauge Quincke spinal needle.~patients will receive the local anesthetic dose of 0.5% heavy bupivacaine (12.5 mg) and 0.5 ml of sterile water will be added."

"patients will be put in the sitting position and lean forward. After sterilization, Dural puncture will be performed at L4-L5 interspace or L3-L4 with a 25 gauge Quincke spinal needle.~patients will receive the local anesthetic dose of 0.5% heavy bupivacaine (12.5 mg) and 0.5 ml of fentanyl (25µg) will be added."

"patients will be put in the sitting position and lean forward. After sterilization, Dural puncture will be performed at L4-L5 interspace or L3-L4 with a 25 gauge Quincke spinal needle.~patients will receive the local anesthetic dose of 0.5% heavy bupivacaine (12.5 mg) and 0.8 mg nalbuphine hydrochloride in 0.5 ml sterile water will be added."

"patients will be put in the sitting position and lean forward. After sterilization, Dural puncture will be performed at L4-L5 interspace or L3-L4 with a 25 gauge Quincke spinal needle.~patients will receive the local anesthetic dose of 0.5% heavy bupivacaine (12.5 mg) and 0.4 ml of midazolam (2mg) + 0.1 ml of sterile water will be added."