• J Shimada, Y Akama, C Tase, and A Okuaki.
• Department of Anesthesiology, Fukushima Medical College.
• Masui. 1994 Aug 1; 43 (8): 1248-50.

AbstractWe describe three cases of extrapyramidal reactions apparently caused by epidural administration of droperidol. These patients suffered from chronic pain and was treated with epidural lidocaine and droperidol. Two patients received continuous administration of droperidol, and experienced acute dystonia and another after a single dose, developed akathisia. Adverse reactions occurred at 15, 20 and 24 hours after the administration of droperidol. The first patient received droperidol 6 mg, the second 8.5 mg and the third 5 mg. We consider that extrapyramidal reactions are due to overdoses because the patients who had been given less than 2.5 mg of droperidol a day, showed no adverse reaction. Although we use higher doses with NLA or for management of fever than with epidural administration of droperidol, we seldom encounter cases of side effects with droperidol. Epidurally administrated droperidol spreads rostral within the neuraxis and causes delayed extrapyramidal reactions as epidural morphine develops delayed respiratory depression. We must be careful in caring patients suffering from chronic pain with continuous epidural administration of droperidol.

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