Pregnancy Drugs, FDA Categories

The FDA places each drug in a category indicating the risk to the fetus of an expectant and/or breastfeeding mother. Here is a link to the list.
Here is a cheat sheet (but don’t depend on this, check the website directly for more information) and always check with your doctor.
Category A: Animal and human studies have established little or no risk (no drug is completely safe)

Category B: Animal studies have shown little or no risk.

Category C: Animal studies have shown adverse effects on the fetus but there are cases where benefits outweigh the risks

Category D: Positive evidence of adverse fetal risk. In some limited cases benefits still outweigh risks.

Category X: Demonstrated fetal abnormalities. The risks clearly outweigh the benefits.

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