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Mnemonics, Simplified Concepts & Thoughts

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Mnemonics, Simplified Concepts & Thoughts

FDA Pregnancy Drug Risk Categories : Mnemonic

Epomedicine, Mar 27, 2021Mar 27, 2021
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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PGMEE, MRCS, USMLE, MBBS, MD/MS Pharmacology

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Epomedicine. FDA Pregnancy Drug Risk Categories : Mnemonic [Internet]. Epomedicine; 2021 Mar 27 [cited 2026 Oct 17]. Available from: https://epomedicine.com/medical-students/fda-pregnancy-drug-risk-categories-mnemonic/.

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