FDA Pregnancy Drug Risk Categories : Mnemonic

FDA drug categories

We have simplified the information above as following:

Category A: Adequate Anthropoid (Human) studies and Absolutely safe (No risk in controlled human studies)

Category B: Bounded (limited) human studies and safe in Beast (animal) studies; Better to use (No risk in other studies)

Category C: Catastrophic effects in animals and Controlled studies inadequate in humans; Could use (Risk not ruled out)

Category D: Dangerous effects in humans; Don’t use it unless Despair (Positive evidence of risk)

Category X: Cross it out (Contraindicated in pregnancy)


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