Sedation for endoscopy: a comparison between diazepam, and diazepam plus pethidine with naloxone reversal.

The combination of diazepam plus pethidine, reversed with naloxone, was compared in a double-blind randomized study with diazepam alone in 100 patients undergoing endoscopy. Patients accepted both methods of sedation equally well. There was no significant difference in sedation after endoscopy, but the addition of pethidine produced a significant improvement in patient co-operation during the endoscopy (P less than 0.001).