What is the pregnancy category for Nitrofurantoin?

Nitrofurantoin is classified as a pregnancy category B medication. This classification indicates that studies in animals have not demonstrated a risk to the fetus, but there are no adequate and well-controlled studies in pregnant women. Nitrofurantoin is prescribed in pregnancy primarily for urinary tract infections since it is considered relatively safe during this time.

When evaluating the other choices, it is essential to recognize that pregnancy category A signifies that adequate and well-controlled studies in pregnant women have demonstrated no risk to the fetus. Category C indicates that risk cannot be ruled out, with animal studies showing an adverse effect but no adequate studies in humans. Category D signifies positive evidence of human fetal risk, typically forcing health care providers to weigh the risks and benefits when prescribing. Thus, understanding pregnancy categories is essential for making informed decisions regarding medication use in pregnant patients.