A comparison of three benzodiazepine hypnotics as oral pre-anaesthetic medication.

A comparative trial of nitrazepam, and triazolam (U-33,030) as pre-anaesthetic medicaments in patients allegedly not subject to insomnia, was undertaken the night before operation. The inclusion of placebo controls confirmed earlier findings that the majority of these patients suffer from transient insomnia. Nitrazepam and flurazepam are hypnotics, and in this study, triazolam also proved to be an hypnotic remarkably free of adverse effects.