A Twitter Tiff Between Former Federal Health Officials Highlights the Weakness of the Case for Banning Kratom

Scott Gottlieb, former head of the Food and Drug Administration (FDA), says he is “convinced” that kratom, a pain-relieving leaf from Southeast Asia, is “fueling the opioid addiction crisis.” To the contrary, kratom enthusiasts argue, the plant is “the cure for the opioid epidemic.”

There is not much evidence to support either position. But as a recent Twitter tiff between Gottlieb and former Assistant Secretary for Health Brett Giroir shows, the argument about whether the federal government should ban kratom hinges on the question of where the burden of proof belongs.

Gottlieb seems to think any potentially dangerous psychoactive substance should be banned unless it meets the FDA’s strict criteria for approval as a medicine. If a drug is not explicitly permitted, in other words, it should be prohibited by default.

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