How Does It Work?Cervidil is a manufactured (synthetic) version of a hormone in the body known as prostaglandin E2. Prostaglandin E2 is naturally secreted by the fetus and placenta during pregnancy, and plays an important role in the steps leading to labor. Importantly, the hormone is involved in cervical ripening, which is when the cervix softens and relaxes to allow passage of the baby during birth.
The Cervidil vaginal insert slowly releases medication over a 12-hour period. The effects of the medication are expected to reverse quickly after the insert is removed.