epidural butorphanol with neostigmine and epidural sufentanil with neostigmine for first stage of labor. Girotra Gautam, Ashok Kumar Saxena, Manoj Chaurasiya, A.K. Sethi University College of Medical Sciences, New Delhi Abstract This prospective, randomized, double blind trial compared epidural butorphanol with neostigmine and epidural sufentanil with neostigmine to provide optimum balanced analgesia for first stage of labor analgesia. Methodology: After informed consent 90 healthy primigravida with gestational age more than 36 weeks in established first stage of labour were randomly allocated to three groups.