Overview

• On Friday, President Trump urged pregnant women to avoid Tylenol unless “absolutely necessary,” told parents not to give it to young children, and advised splitting the MMR vaccine and delaying hepatitis B until age 12.
• An FDA letter this week says prenatal acetaminophen use may be associated with autism but causation is unproven, and it remains the only over‑the‑counter option for treating fever during pregnancy.
• CMS chief Dr. Mehmet Oz and Vice President JD Vance told the public to follow their physicians, with Oz saying pregnant patients should take Tylenol for high fever if a doctor recommends it.
• Major medical groups continue to back judicious use in pregnancy and point to higher‑quality research, including a 2024 Swedish sibling analysis of roughly 2.4–2.5 million children that found no causal link.
• Doctors report immediate effects in clinics, from vaccine spacing requests to parental anxiety, while Tylenol maker Kenvue rejects a causal claim and officials pursue steps such as a leucovorin review for limited autism‑related uses.