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The top legal official in Texas Ken Paxton is filing a lawsuit against the manufacturers of Tylenol, asserting the companies hid safety concerns that the medication posed to children's brain development.

The court filing comes a month after Donald Trump promoted an unverified association between consuming acetaminophen - alternatively called paracetamol - while pregnant and autism in children.

The attorney general is suing J&J, which previously sold the medication, the exclusive pain medication suggested for women during pregnancy, and Kenvue, which currently produces it.

In a declaration, he stated they "betrayed America by gaining financially from pain and marketing drugs without regard for the risks."

The manufacturer asserts there is insufficient reliable data linking Tylenol to autism spectrum disorder.

"These manufacturers misled for generations, intentionally threatening numerous people to boost earnings," Paxton, a Republican, stated.

Kenvue stated officially that it was "very worried by the dissemination of inaccurate information on the safety of paracetamol and the potential impact that could have on the health of US mothers and children."

On its online platform, Kenvue also said it had "consistently assessed the relevant science and there is insufficient valid information that demonstrates a verified association between consuming acetaminophen and autism."

Associations acting on behalf of physicians and medical practitioners share this view.

The leading OB-GYN organization has said paracetamol - the primary component in acetaminophen - is one of the few options for women during pregnancy to manage discomfort and fever, which can present significant medical dangers if ignored.

"In more than two decades of studies on the consumption of acetaminophen in gestation, no reliable research has definitively established that the use of acetaminophen in any stage of gestation causes neurological conditions in young ones," the group stated.

The court filing references recent announcements from the previous government in arguing the medication is reportedly hazardous.

Last month, the former president caused concern from medical authorities when he told women during pregnancy to "fight like hell" not to take acetaminophen when unwell.

Federal regulators then published an announcement that medical professionals should consider limiting the consumption of acetaminophen, while also declaring that "a direct connection" between the drug and autism spectrum disorder in children has remains unverified.

Health Secretary Robert F Kennedy Jr, who oversees the Food and Drug Administration, had vowed in spring to undertake "a massive testing and research effort" that would determine the source of autism in a matter of months.

But experts advised that discovering a sole reason of autism - considered by experts to be the outcome of a complex mix of genetic and environmental factors - would prove challenging.

Autism spectrum disorder is a category of enduring cognitive variation and condition that impacts how individuals perceive and engage with the world, and is identified using medical professional evaluations.

In his lawsuit, Paxton - aligned with the former president who is seeking federal office - alleges the manufacturer and Johnson & Johnson "deliberately disregarded and attempted to silence the research" around acetaminophen and autism spectrum disorder.

The lawsuit seeks to make the firms "remove any marketing or advertising" that asserts acetaminophen is safe for pregnant women.

This legal action parallels the grievances of a assembly of mothers and fathers of young ones with autism and ADHD who took legal action against the manufacturers of acetaminophen in two years ago.

Judicial authorities rejected the lawsuit, saying investigations from the parents' expert witnesses was lacking definitive proof.