There is no scientific evidence showing that pregnant women taking the painkiller paracetamol causes autism in their children, medical experts and drug regulators have emphasised after Donald Trump claimed the two were linked.

Some outraged autism researchers have warned the US president's comments represented misinformation that could cause unnecessary fear among pregnant women -- and further stigmatise the autistic community.

Here is what scientific research has found about pregnancy, paracetamol and autism.

- What is the best study? -

Paracetamol -- also called acetaminophen -- is the main ingredient in painkillers such as Tylenol and Panadol, which are among the world's most popular and widely studied drugs.

Trump said on Monday that pregnant women should "tough it out" rather tha

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