Drugs in pregnancy Flashcards
Chloramphenicol
Category C
Finasteride
Category X
Isotretinoin
Category X
Lithium carbonate
Category D
Methimazole
Category D
Metronidazole
Category B
Misoprostol
Category X
Sulfonamide
Category C
Tetracycline
Category D
Valproic Acid
Category D
Warfarin
Category X
Category A
No Risk Shown in Controlled Studies
Adequate, well-controlled studies in pregnant women have failed to demonstrate risk to the fetus.
Category B
No Evidence of Risk in Humans
Animal findings show risk whereas human findings do not, or, if no adequate human studies have been done, animal findings are negative.
Category C
Risk Cannot Be Ruled Out
Human studies are lacking, and animal studies are either positive for risk or lacking as well. However, potential benefits may outweigh the potential risk.
*Category C or D depending on the trimester the drug is given.
Category D
Positive Evidence of Risk
Investigational or post-marketing data show risk to the fetus. Nevertheless, potential benefits may outweigh the potential risk.
*Category C or D depending on the trimester the drug is given.
