RT Book, Section A1 Kostelecky, Natalie A1 Pastores, Stephen M. A2 Oropello, John M. A2 Pastores, Stephen M. A2 Kvetan, Vladimir SR Print(0) ID 1136420279 T1 Drugs in Pregnancy T2 Critical Care YR 1 FD 1 PB McGraw-Hill Education PP New York, NY SN 9780071820813 LK accessmedicine.mhmedical.com/content.aspx?aid=1136420279 RD 2024/04/19 AB The Food and Drug Administration (FDA) has established 6 categories (A, B, C, D, X, and N) to indicate the potential of a drug to cause birth defects if used during pregnancy.† The categories are determined by the reliability of documentation and the risk to benefit ratio. They do not take into account any risks from pharmaceutical agents or their metabolites in breast milk.