Freakonomics Radio

Are You Really Allergic to Penicillin? (Update)

July 17, 2026·1h 5m·7-min readnarrativehealth
Podzilla Summary (7 min)
TLDR
A staggering number of people believe they are allergic to penicillin, but fewer than 1% actually are — a misdiagnosis with serious health and economic consequences. This episode explores how a false medical label persists, the science behind true allergies, and why correcting it could sa

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Guest

K

Kimberly Blumenthal

narrative on Freakonomics Radio

Mentions

Books, people, and resources mentioned in this episode.

People

Stephen DubnerKimberly BlumenthalTheresa MacPhailThomas Platts-MillsElena Resnick

Books

Allergic: Our Irritated Bodies in a Changing Worldby Theresa MacPhail

Research & Papers

LEAP study

Topics

EpidemiologyMens HealthMental HealthNutritionUs PoliticsVaccinesWomens Health

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