Preoperative Oral Midodrine Versus Intraoperative Intravenous Norepinephrine in Preventing Post-spinal Anesthesia Hypotension in Cesarean Section: A Prospective Double-blind Randomized Clinical Trial

after spinal anesthesia, norepinephrine will be injected intravenous as bolus at 0.05 μg/kg, followed by norepinephrine infusion at a rate of 0.05 μg/kg.min to prevent post spinal hypotension

10 mg tablets of midodrine 1 hour before spinal anesthesia to prevent post spinal anesthesia hypotension