
The Food and Drug Administration has established five categories to indicate the potential for a systemically absorbed drug to cause birth defects. The key differentiation among the categories rests upon the degree (reliability) of documentation and the risk-benefit ratio.
Category A:
Adequate studies in pregnant women have not demonstrated a risk to the fetus in the first trimester of pregnancy, and there is no evidence of risk in later trimesters.

Stay updated, free articles. Join our Telegram channel

Full access? Get Clinical Tree

