Off-label prescribing during pregnancy in France: the NéHaVi cohort .

Objective: To describe the off-label medication use in a cohort of pregnant women.

Material And Methods: We performed a multicenter prospective longitudinal observational study in the Haute-Vienne department (France) called the NéHaVi cohort ("Né en Haute-Vienne" meaning "born in Haute-Vienne"). Women who had given birth to a viable baby in one of three maternity wards in the Haute-Vienne were included in the study after giving their informed consent.