. Author manuscript; available in PMC: 2014 Nov 16.

Published in final edited form as: Cochrane Database Syst Rev. 2010 Sep 8;(9):CD007396. doi: 10.1002/14651858.CD007396.pub2

Analysis 19.1. Comparison 19 IV phenazocine versus IV pethidine, Outcome 1 Satisfaction with pain relief (women with fair or poor relief).

Review: Parenteral opioids for maternal pain management in labour

Comparison: 19 IV phenazocine versus IV pethidine

Outcome: 1 Satisfaction with pain relief (women with fair or poor relief)