FC tablet: Use in Pregnancy: Metronidazole crosses the placental barrier and enters the fetal circulation rapidly. Reproduction studies have been performed in rats at doses up to five times the human close and have revealed no evidence of impaired fertility or harm to the fetus due to Metronidazole.
Use in Lactation: Because of the potential for tumorogenicity shown for metronidazole in mouse and rat studies, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the concentration similar to those found in plasma.