Andrew Joseph covers health, medicine, and the biopharma industry in Europe. You can reach Andrew on Signal at drewqjoseph.45.

In a highly unusual move, the Food and Drug Administration reapproved a drug on Monday that stopped being sold more than 25 years ago, part of a push from the Trump administration to identify the causes of and potential treatments for autism. 

The drug, GSK’s Wellcovorin, is a branded version of leucovorin, a widely available generic drug that’s generally used to help tame the side effects of drugs, including certain cancer treatments.

President Trump and his health secretary, Robert F. Kennedy Jr., on Monday announced that the administration is exploring leucovorin as an autism therapy during an event on autism at the White House. Health officials also said that Tylenol use during pregnancy could cause autism. 

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