Oral Dexamethasone for Postoperative Nausea and Vomiting After Laparoscopic Cholecystectomy

Patients in the intervention group will receive oral 8 mg dexamethasone at night before surgery. The time of dexamethasone administration will be recorded.

Patients in the control group will receive intravenous 8 mg dexamethasone just before or at the induction of anesthesia. The dexamethasone ampule will be diluted in a 10 ml syringe and given in at least one minute to avoid unpleasant sensations in injection.