Dexamethasone alone does not prevent postoperative nausea and vomiting in women undergoing dilatation and curettage: a comparison with droperidol and saline.

We conclude that dexamethasone (8 mg) alone does not prevent PONV in women undergoing dilatation and curettage. Droperidol is effective. Dexamethasone enhances the antiemetic effect of droperidol.