Furadantin and Pregnancy
If you have a urinary tract infection (UTI) during pregnancy, your healthcare provider may recommend Furadantin (nitrofurantoin suspension). This antibiotic is actually one of the most commonly used medications for treating UTIs in pregnant women. It is generally considered safe, except for when a woman is more than 38 weeks pregnant or ready to deliver.
Is Furadantin Safe During Pregnancy?Furadantin® (nitrofurantoin suspension) is a prescription antibiotic used to treat and prevent bladder infections. Although the full risks are not currently known, Furadantin is usually considered safe for use during pregnancy, except during the very end, near delivery.
What Is Pregnancy Category B?The U.S. Food and Drug Administration (FDA) uses a category system to classify the possible risks to a fetus when a specific medicine is taken during pregnancy. Pregnancy Category B is given to medicines that have not been adequately and systematically studied in pregnant humans but do not appear to cause harm to the fetus in animal studies.
In most animal studies, large doses of nitrofurantoin (the active ingredient in Furadantin) did not cause any problems during pregnancy. One animal study suggested that extremely high doses might be linked to poor growth and minor birth defects, but such problems were not seen with lower doses, which were still higher than those used in humans. Another study suggested that high doses may cause lung tumors.
It should be noted that problems seen in animal studies, which often involve very high doses of medication for long periods, do not necessarily reflect what happens with humans. Pregnant women can be assured that nitrofurantoin products such as Furadantin are some of the most commonly used antibiotics for urinary tract infections in their situation.