The Australian & New Zealand journal of obstetrics & gynaecology
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Aust N Z J Obstet Gynaecol · Feb 2009
Randomized Controlled TrialA comparison of tramadol and pethidine analgesia on the duration of labour: a randomised clinical trial.
The ideal obstetric analgesia should provide analgesic efficacy without attenuation of uterine contractions. ⋯ Both 100 mg tramadol and 50 mg pethidine provide moderate analgesia in first stage of labour. Tramadol seems to cause a shorter duration of labour and lower incidence of maternal side-effects. However, its analgesic efficacy was not found to be as effective as pethidine, especially in the second stage of labour.