President Trump has expressed strong negative views about Tylenol (acetaminophen), specifically urging pregnant women to avoid using it. He claimed that taking Tylenol during pregnancy is "not good" and suggested it may be linked to an increased risk of autism in children. Trump urged women to "fight like hell not to take it" unless medically necessary, such as in cases of extremely high fever where the woman cannot "tough it out." This position was announced in a press conference alongside Health Secretary Robert F. Kennedy Jr., who also supports the idea of a link between acetaminophen use and autism despite limited scientific evidence. Trump's remarks extended to recommending changes to the vaccine schedule for infants, further promoting discredited views about vaccines and autism. However, medical experts and researchers largely consider the evidence linking acetaminophen with autism to be minimal or inconclusive. The American College of Obstetricians and Gynecologists called Trump's claims irresponsible, worrying that they could mislead pregnant women and cause harm by discouraging the safe use of the drug. The manufacturer of Tylenol has also defended its safety during pregnancy, emphasizing that acetaminophen remains one of the safest options for pain and fever relief for expectant mothers. Many scientists note that current research does not support causation between acetaminophen and autism, and these warnings are seen by experts as unsupported by credible scientific data. In summary, Trump's "hatred" or negative stance on Tylenol stems from his belief—following controversial and largely unproven claims—that it may increase the risk of autism when used during pregnancy. This position contradicts the consensus of the medical community, which maintains acetaminophen is safe for pregnant women when used as directed and highlights that the scientific evidence does not establish a causal relationship between Tylenol and autism.