Analgesic and Anti-inflamatory Effect of Vit. B

group of vit. B will recieve as an oral capsules for 4 days preoperative , and infusion of vitamin B complex 1ml diluted in 100 ml normal saline administered intravenously after anathesia induction .

group of vitamin C will recieve 1000 mg as an oral capsule for 4 days and infusion at dose of 50 mg/kg diluted in 100 ml normal saline administered iv after induction of anathesia .

patients will recieve placebo tablets with identical regimen preoperative and a placebo infusion of 100 ml normal saline after induction of anathesia ,prepared with identical appearance and taste by the pharmacist according to the randomization group.