Texas Attorney General Ken Paxton on Tuesday accused the companies behind Tylenol of deceptively marketing the pain reliever to pregnant mothers in a lawsuit that asserted unproven claims that early exposure to acetaminophen increased the risk of autism and other disorders.

Paxton, an ally of President Donald Trump and a Republican candidate for U.S. Senate, announced the suit against Johnson & Johnson and Kenvue weeks after Trump and Health Secretary Robert F. Kennedy Jr. asserted an unproven link between the pain reliever and autism while announcing a wide-ranging effort to study the causes of the complex brain disorder.

The suit alleges that the companies violated Texas consumer protection laws by hiding the danger that acetaminophen, the active ingredient in Tylenol, posed to fetuses

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