Women were randomized to receive vaginal misoprostol , 400 g , with 100 mL of 5 % intravenous glucose ( misoprostol arm ) ; intravenous ketoprofen , 50 mg/mL , in 100 mL 5 % glucose with intravaginal placebo ( ketoprofen arm ) ; or vaginal placebo tablets , 100 mL 5 % intravenous glucose ( placebo arm ) before outpatient hysteroscopy .