特朗普警告：孕妇慎用，知名医药大厂股价暴跌；这种药家中常备，还能吃吗？专家解读

Core Viewpoint - The safety controversy surrounding Tylenol (acetaminophen) has resurfaced, particularly regarding its use by pregnant women and its potential link to autism, as suggested by the U.S. government [1][2]. Company Impact - Kenvue, the manufacturer of Tylenol, saw its stock price drop by 7.47% to a historic low following President Trump's warning to pregnant women about the potential risks associated with acetaminophen [3][4]. - Kenvue maintains its stance that there is no evidence linking acetaminophen use to autism, supported by independent public health and medical professionals [10]. Market Reaction - The announcement from the Trump administration caused significant market turbulence, with Kenvue's stock experiencing its largest single-day drop since September 5 [7][3]. - Despite the initial drop, Kenvue's stock rebounded by over 4.4% in after-hours trading [7]. Scientific Debate - The warning from the White House was based on a review study published in BMC Environmental Health, which suggested prenatal exposure to acetaminophen could interfere with fetal brain development [11]. - However, many experts criticized the study for its lack of rigor and selective reporting of supporting research [12][14]. - Contradictory studies, including a large-scale analysis of nearly 2.5 million children in Sweden, found no causal relationship between acetaminophen use during pregnancy and autism or ADHD [15]. Regulatory Perspective - The FDA has been reviewing the safety of acetaminophen for over a decade and has consistently maintained its recommendation for use during pregnancy [10]. - The FDA has not found conclusive evidence linking appropriate use of acetaminophen during pregnancy to adverse outcomes [10]. Medical Community Response - The American College of Obstetricians and Gynecologists (ACOG) and other medical organizations have refuted the claims made by the Trump administration, emphasizing the lack of clear evidence linking acetaminophen to autism [16][17]. - Experts warn that untreated fever during pregnancy poses greater risks than the potential risks associated with acetaminophen use [18].