Pregnancy, prescription medicines and the potential risk of herb-drug interactions: a cross-sectional survey.

Background: Pregnant women are routinely prescribed medicines while self-medicating with herbal natural products to treat predominantly pregnancy related conditions. The aim of this study was to assess the potential for herb-drug interactions (HDIs) in pregnant women and to explore possible herb-drug interactions and their potential clinical significance.

Methods: A cross-sectional survey of women during early pregnancy or immediately postpartum in North-East Scotland.