Premedication for gastroscopy. A comparative study of diazepam, dixyrazine, and placebo

In a study of 52 consecutive out-patients the effects of diazepam and dixyrazine were compared with each other and with placebo as premedication for elective gastroscopy. All patients also received topical lidocaine and intravenous administration of propantheline bromide immediately before the examination. No difference was found between diazepam and dixyrazine, but they were both significantly superior to placebo in relieving anxiety, retching, and eructations.