Comparative study of epidural bupivacaine with butorphanol and bupivacaine with tramadol for postoperative pain relief in abdominal surgeries

DOI: 10.4103/0259-1162.177522

Keywords: Butorphanol, epidural, tramadol

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Abstract:

To compare the efficacy of combination of epidural local anesthetic with tramadol and butorphanol in major abdominal surgeries

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