The purpose of this review was to look at the evidence available for the use of atosiban as a tocolytic in cases of threatened preterm labour. A Royal College of Obstetricians and Gynaecologists Green Top Guideline concluded that there was no clear evidence to show a benefit to tocolysis in reducing perinatal and neonatal morbidity and mortality. Using a systematic literature search, we summarise the evidence available on the use of atosiban for the prevention of preterm birth and compare it with other commonly used tocolytic agents in terms of efficacy, patient preference and drug safety. We conclude that although atosiban appears to be the tocolytic of choice, a clear benefit of using tocolysis in all cases of threatened preterm labour remains to be justified and clinical management should be tailored according to individual needs.
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