Magnesium Sulphate as a Tocolytic Agent in Preterm Labour


  • Punjab Institute of Medical Sciences, Department of obstetrics and Gynaecology, Jalandhar, Punjab, India


Background: Prematurity and its prevention continue to be a major challenge for both the obstetrician and neonatologist. Preterm labour is the most common obstetrical complication associated with perinatal deaths. Despite all advances in neonatology, the delivery of a preterm neonate is a clinical crisis that threatens the life and health of an infant. The obstetrician thus faces the challenge of affecting the delivery in such a way as to optimize the status of fetus-infant at birth. It is far more preferable to prevent the intiation of preterm labour than once the cascade of events has already been established.

Objective: To assess the efficacy of magnesium sulphate as a tocolytic agent in preterm labour.

Material and Methods: 50 pregnant patients with gestational age 28- 37 weeks with cervical dilatation not more than 3cm and cervical effacement not more than 50 % with intact membranes with regular uterine contractions with a frequency of 2 or more per 10 minutes lasting for at least 30 seconds were put on magnesium sulphate.

Results: Magnesium sulphate was successful in attaining tocolysis in majority of patients and had no adverse effects on immediate neonatal out come.

Conclusion: Magnesium sulphate is effective, safe and well tolerated tocolytic agent with no adverse effects on the fetus-infant.


Magnesium Sulphate, Preterm Labour, Tocolytic Agent, Perinatal, Premature.

Subject Discipline

Obstetrics and Gynaecology

Full Text:


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