WASHINGTON >> President Donald Trump said today there was a link between the use of popular over-the-counter pain medication Tylenol and the development of autism during pregnancy, a claim which many doctors dispute.

Trump also suggested leucovorin, a form of folic acid, as a treatment for autism symptoms during a White House event. The Food and Drug Administration published a notice to the Federal Register ahead of his speech, approving a version of the drug made by GSK it had previously withdrawn. The FDA approved the drug for a condition it associated with autism.

The FDA cited a review of the use of leucovorin in 40 patients with a rare metabolic disorder called cerebral folate deficiency that can lead to a range of neurological symptoms, some of which are seen in people with autism.

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