TRACTOCILE is indicated to delay imminent pre-term birth in pregnant women with: − regular uterine contractions of at least 30 seconds duration at a rate of ≥ 4 per 30 minutes − a cervical dilation of 1 to 3 cm (0-3 for nulliparas) and effacement of ≥ 50% − age ≥ 18 years − a gestational age from 24 until 33 completed weeks − a normal fetal heart rate