Premature labour, Atosiban is indicated for use in delaying imminent pre-term birth in pregnant adult women with: regular uterine contractions of at least 30 s duration at a rate of at least 4 per 30 min a cervical dilation of 1-3cm (0-3cm for nulliparas) and effacement of at least 50% a gestational age of 24-33 weeks a normal fetal heart rate