Scott Alexander corrects and expands on the story of Omegaven, a life-saving infant nutritional fluid, using it to illustrate systemic issues with medical regulation and drug approval.
Longer summary
Scott Alexander revisits a story about Omegaven, a fish-oil-based nutritional fluid for infants, correcting some details from his previous post. He explains how the fluid was discovered to prevent liver disease in infants requiring IV nutrition, and the challenges faced in getting it approved by the FDA. While the FDA comes off relatively well in the story, Scott argues that the real problem is the systemic hurdle of drug approval that makes everything in medicine illegal by default. He discusses how this hurdle makes scientific discoveries harder and potentially costs lives, even when many individuals involved are trying their best.
Shorter summary