Short report: sedation for upper gastrointestinal endoscopy--diazepam versus midazolam.

Intravenously injected midazolam was associated with a greater degree of sedation, as assessed by 24-h retrograde amnesia, than the longer acting benzodiazepine, diazepam. No differences in the frequency of pain on injection or the occurrence of venous sequelae were noted between the two preparations.