Analgesia for Circumcision in Children: A Comparison of Caudal Bupivacaine and Intramuscular Buprenorphine

Abstract
In 44 boys undergoing day case circumcision, analgesia was provided with either buprenorphine 3 μg/kg intramuscularly or 0.25% bupivacaine 0.5 ml/kg by caudal injection. Both methods provided good analgesia; the frequency of side effects was less with caudal analgesia; and restoration to normal activity 24 h after operation was greater than with buprenorphine.