Texas Attorney General Ken Paxton is filing a lawsuit against the manufacturers of Tylenol, claiming the companies concealed safety concerns that the medication posed to pediatric neurological development.
The court filing arrives a month after President Donald Trump advocated an unproven link between using Tylenol - also known as paracetamol - during pregnancy and autism in offspring.
The attorney general is suing Johnson & Johnson, which once produced the drug, the only pain reliever approved for women during pregnancy, and Kenvue, which presently makes it.
In a statement, he said they "betrayed America by gaining financially from pain and marketing drugs ignoring the potential hazards."
Kenvue states there is insufficient reliable data tying Tylenol to autism spectrum disorder.
"These manufacturers lied for decades, deliberately risking countless individuals to line their pockets," Paxton, from the Republican party, said.
Kenvue said in a statement that it was "very worried by the dissemination of inaccurate information on the safety of acetaminophen and the potential impact that could have on the health of American women and children."
On its online platform, the company also said it had "continuously evaluated the applicable studies and there is no credible data that shows a proven link between taking acetaminophen and autism spectrum disorder."
Organizations acting on behalf of medical professionals and health professionals concur.
The American College of Obstetricians and Gynecologists has declared paracetamol - the key substance in acetaminophen - is a restricted selection for pregnant women to manage discomfort and elevated temperature, which can pose serious health risks if ignored.
"In multiple decades of investigation on the use of acetaminophen in pregnancy, not a single reputable study has successfully concluded that the consumption of paracetamol in any period of pregnancy leads to brain development issues in offspring," the association said.
This legal action mentions latest statements from the former administration in asserting the drug is reportedly hazardous.
Recently, Trump caused concern from health experts when he instructed pregnant women to "struggle intensely" not to take Tylenol when unwell.
Federal regulators then released a statement that doctors should consider limiting the usage of acetaminophen, while also declaring that "a causal relationship" between the medication and autism in children has not been established.
Health Secretary Kennedy, who manages the Food and Drug Administration, had vowed in April to conduct "a massive testing and research effort" that would determine the origin of autism in a limited time.
But authorities advised that finding a single cause of autism spectrum disorder - thought by researchers to be the result of a complicated interplay of inherited and environmental factors - would prove challenging.
Autism is a category of lifelong neurodivergence and impairment that impacts how individuals encounter and relate to the environment, and is identified using physician assessments.
In his lawsuit, the attorney general - a Trump ally who is campaigning for the Senate - asserts Kenvue and Johnson & Johnson "deliberately disregarded and tried to quiet the research" around acetaminophen and autism.
The case attempts to require the corporations "destroy any commercial messaging" that claims acetaminophen is reliable for women during pregnancy.
The court case echoes the concerns of a assembly of guardians of children with autism and ADHD who took legal action against the makers of acetaminophen in 2022.
Judicial authorities threw out the lawsuit, saying research from the plaintiffs' authorities was not conclusive.
Lena is a mindfulness coach and writer passionate about helping others find clarity and purpose through practical advice and reflective practices.