President Donald Trump publicly linked acetaminophen (the active ingredient in Tylenol) use during pregnancy to an increased risk of autism in children. He advised pregnant women not to take Tylenol except in cases of very high fever, stating multiple times that "Tylenol is not good" and urging women to avoid it. Trump and his administration proposed that medical professionals receive new guidance against prescribing or recommending acetaminophen for pregnant women due to concerns about its potential association with autism. They also promoted leucovorin (folinic acid) as a treatment for autism symptoms. However, these claims have not been substantiated by conclusive scientific evidence, and many medical experts and organizations have disputed the assertions, emphasizing that the evidence is inconclusive and that acetaminophen is generally considered safe for use during pregnancy when used appropriately. The FDA has advised caution but still recognizes acetaminophen as a safe option in many cases. Thus, Trump's statements reflect a controversial stance linking acetaminophen in pregnancy to autism that contradicts mainstream medical consensus and scientific findings to date.