Isonicotinic acid hydrazide (INH) versus extra-amniotic saline infusion (EASI) for cervical ripening at term: a randomised controlled trial.

The purpose of this trial was to compare extra-amniotic saline infusion (EASI) and intravaginal isoniazid (INH) for cervical ripening. This randomised clinical trial included 150 pregnant women who were undergoing induction of labour and who required pre-induction cervical ripening. Patients were randomly assigned to receive EASI or intravaginal INH.