Senate Majority Leader John Thune (R-SD) disagreed with the Trump administration on its Tylenol claims Wednesday, saying an “awful lot” of the medical community is coming to a different conclusion on the drug.

The Trump administration linked Tylenol use in pregnancy to autism in children earlier this week.

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“There are studies out there that they reference,” Thune said of the announcement.

“But again, I think there are an awful lot of people in the medical community who come to a different conclusion about the use of Tylenol,” he added.

Thune believes the administration should avoid making “broad assertions.”

“My view is we ought to be very guarded in making broad assertions and make sure that they are well grounded in science and medicine and where we’re taking the consultation advice of experts in the field and ensuring that these things are all well documented,” he said.

Other Republican senators, like gastroenterologist Sen. Bill Cassidy (R-LA), have outright rejected the administration’s assessment on Tylenol.

“I understand and applaud President Trump’s desire to address this issue and to support HHS. HHS should release the new data that it has to support this claim,” Cassidy posted on X. “The preponderance of evidence shows that this is not the case. The concern is that women will be left with no options to manage pain in pregnancy. We must be compassionate to this problem.”

Sen. Roger Marshall (R-KS), an OB-GYN, said evidence that using an acetaminophen painkiller, sold under the brand Tylenol, was “inconclusive.”

Pregnant women have very limited options for medicated pain relief outside of the medication. The administration received blowback from the medical community for slamming Tylenol.

“Suggestions that acetaminophen use in pregnancy causes autism are not only highly concerning to clinicians but also irresponsible when considering the harmful and confusing message they send to pregnant patients, including those who may need to rely on this beneficial medicine during pregnancy,” President of the American College of Obstetricians and Gynecologists, Steven J. Fleischman, said in a statement.

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Thune also chastised the administration for its threats regarding Jimmy Kimmel following his comments on Charlie Kirk’s death.

“As a general matter, my view is that the government ought to stay out of the free speech marketplace unless there are clear violations that violate laws that are in place to protect the American people,” he said.