
The White House has posted a photo of an old tweet in the midst of a row over the use of Tylenol.
Trump recently made a series of false claims which linked autism to taking paracetamol while pregnant.
The administration's Health Secretary, Robert F Kennedy Jr, also has a history of spreading conspiracy theories linking the use of vaccines to autism, despite there being zero evidence to support this.
Since the Trump administration's announcement, Tylenol has added a pop-up message to its website seeking to reassure users about using paracetamol.
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It said: "We stand with science, and we stand with you.
"Tylenol is one of the most studied medications in history, and is safe when used as directed by expecting mothers, infants and children.
"The facts remain unchanged: over a decade of rigorous research, endorsed by leading medical professionals, confirm there is no credible evidence linking acetaminophen to autism."
Now, Trump and his allies have doubled down on their claims, drawing attention to an old tweet by Tylenol.
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In the tweet, the company posted: "We actually don't recommend using any of our products while pregnant. Thank you for taking the time to voice your concerns today."
The White House seized upon this for its campaign.
In a repost, the official White House account posted an image of Trump holding a MAGA-red cap with the message 'Trump was right about everything.'
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The post was intended as a dunk on critics of the administration's position by showing that the company itself does not recommend using its products while pregnant.
The World Health Organisation recommends that anyone who is pregnant should exercise 'caution' in taking any medication, and of course, follow the advice of their doctor.
It wrote: "Any medicine should be used with caution during pregnancy, especially in the first three months, and in line with advice from health professionals."
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Of course, advice that you should exercise caution in taking medication is not the same as proof of a positive connection between the medication and autism.
The WHO has added that there is currently no evidence which would confirm such a link.

It wrote: "The World Health Organization (WHO) emphasizes that there is currently no conclusive scientific evidence confirming a possible link between autism and use of acetaminophen (also known as paracetamol) during pregnancy."
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The WHO added: "Extensive research has been undertaken over the past decade, including large-scale studies, looking into links between acetaminophen use during pregnancy and autism.
"At this time, no consistent association has been established."
Topics: Donald Trump, Health, News, US News