A randomized comparative study of effect of intramuscular valathemate bromide (epidosin) and intramuscular camylofin dihydrochloride (anafortan) on cervical dilatation in labour

Dinesh Mehra, Madhubala Chouhan, Shatendra Goyal


Background: Our aim is to search for a good cervical dilating agent which is not only more efficacious in cervical dilatation but also effective in relieving pain during labour with no or very little harmful effects on mother and foetus.

Methods: The type of study was simple randomized comparative study. The present study was conducted in R. N. T. Medical College, Udaipur between October 2019 and December 2020. 118 patients were selected randomly. Two groups were made each consisting of 59 patients. First group received intramuscular camylofin dihydrochloride, second group received intramuscular (IM) valethamate bromide. Patients included in study group were: primigravidae/multigravidae, singleton full term gestation (37-40 weeks) with vertex presentation, cervical dilatation of ≥3 cm and patient excluded from study group with preclampsia, eclampsia, antepartum haemorrhage, any obstetric complications: cephalo pelvic disproportion, abnormal presentations.

Results: Mean duration of active phase of first stage of labor was shorter in group I (313.17 minutes) than in group II (356.3 minutes) but not statistically significant. Mean cervical dilatation rate was significantly more in group I (2.02 cm/hour) than group II (1.81 cm/hour). Anafortan was effective in pain relief with mean pain score 5.31±1.06 while mean pain score for epidosin group was 7.37±1.07.

Conclusions: In our study we observed that intramuscular camylofin dihydrochloride (anafortan) was more efficacious than IM valethamate bromide (epidosin) in shortening the duration of labor as well as in pain relief.


Cervical dilatation rate, Pain relief in labour, Anafortan, Epidosin

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