The Trump administration is hailing a medication called leucovorin for reducing some autism symptoms, but experts who research or treat autism almost uniformly agree the medication should be studied further before it’s rolled out to children or adults.

Leucovorin, also referred to as folinic aid, is a synthetic form of vitamin B9 that requires a prescription. It’s often administered to cancer patients alongside chemotherapy in the form of an IV.

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The Food and Drug Administration announced Monday that it's in the process of approving a tablet version for certain autism patients.

Many researchers questioned whether the approval was premature, given that only a handful of small trials — mostly conducted outside the U.S. —

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