Nitrous Oxide versus Pethidine with Promethasine for Reducing Labor Pain

Batool Teimoori¹, Nahid Sakhavar¹, Masoome Mirteimoori¹, Behzad Narouie^2* and Mohammad Ghasemi-rad³

¹Department of Obstetrics and Gynecology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran

²Researcher of Clinical Research Development Center, Ali-ebne-Abitaleb hospital, Zahedan University of Medical Sciences, Zahedan, Iran

³Medical Student, Urmia University of Medical Sciences, Student Research Committee, Urmia, Iran

^*Corresponding Author: Dr. Behzad Narouie, Researcher of Clinical Research Development Center, Ali-ebne-Abitaleb Hospital, Zahedan University of Medical Sciences, Zahedan, Iran, Tel: +985413414103, Fax: +985413414103 Email: