A clinical trial to compare the effectiveness of a drug, Ephedrine with crystalloid infusion to prevent spinal anaesthesia induced hypotension

INTERVENTION: Intervention1: Ephedrine: 5 mg per minute for 2 minutes and then 1 mg per minute for 18 minutes Control Intervention1: Normal Saline: 15 ml per kg CONDITION: Spinal anaesthesia induced hypotension PRIMARY OUTCOME: Hypotension‐‐‐‐‐‐Timepoint: 1 min,2 min, 4 min, 6 min, 8 min, ; 10 min, 20 min,30 min, 40 min,50 min, 60 min,70 min, 80 min, 90 min, ; 100 min, 110 min, 120 min. SECONDARY OUTCOME: Side effects of Ephedrine if any‐‐‐‐‐‐Timepoint: 1 min, 2 min, 4 min, 6 min, 8 min, 10 min, 20 min, 30 min, 40 min, 50 min, 60 min, 70 min, 80 min, 90 min, 100 min, 110 min, 120 minutes. INCLUSION CRITERIA: 1) Patients belonging to age groups 20 to 60 2) ASA grades 1 and 2 patients of both sexes 3) Type of surgery ‐ Elective lower abdominal surgeries