By Nancy Lapid

(Reuters) -On Monday, the U.S. Food and Drug Administration published a notice to the Federal Register ahead of a speech by President Donald Trump, approving a version of leucovorin made by GlaxoSmithKline that the company had previously withdrawn from the FDA’s consideration when it stopped manufacturing the drug.

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.

Here’s what is known about leucovorin and autism.

WHAT IS LEUCOVORIN?

Leucovorin, also known as folinic acid, is a form of folate, an essential B vitamin, or B9.

Leucovorin has been approved by the U.S. Food and Drug Administration for c

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