Single injection of DXM (Mylan Dexamethasone® 20 mg/5 ml or 4 mg/1 ml injection ampoule solution) at 0.2 mg / kg or 0.4 mg/kg or single injection of ketoprofen (Medac ketoprofen ® 100 mg/4 ml injection ampoule solution) at 1 mg /kg after general anesthesia induction and before surgery incision.