Comparison of Dexamethasone and Methoclopramide on nausea and vomiting

INTERVENTION: 10mg Metoclopramide IV before extubation and 6 hours after operation 8mg Dexamethasone (IV) before extubation and 6 hours after operation Intervention 1: 10mg Metoclopramide IV before extubation and 6 hours after operation. Intervention 2: 8mg Dexamethasone (IV) before extubation and 6 hours after operation. Treatment ‐ Drugs CONDITION: Nausea and vomiting. PRIMARY OUTCOME: Nausea. Timepoint: 1, 3, 6 hours after operation. Method of measurement: Asking the patient and observation. Vomiting. Timepoint: 1, 3, 6 after operation. Method of measurement: observation and checklist. INCLUSION CRITERIA: INCLUSION CRITERIA: inguinal hernia elective surgery, weight<100kg, age 20‐40 years, no severe or chronic illness or (Asthma, Blood pressure, Lung, Renal or liver diseases), having Class ASA I‐II Exclusion criteria: hypersensitivity to investigation drugs, No cooperation, Occurrence of heart and lung disorders, Smoking, opium consumption, any drug hypersensitivity