Overview

• In a Friday Truth Social post, the president told pregnant women to avoid Tylenol unless necessary, urged parents not to give it to young children, and called for splitting MMR into three shots, giving chickenpox separately, delaying hepatitis B until age 12, and spreading vaccines over five visits.
• The FDA’s letter to clinicians said prenatal acetaminophen use may be associated with neurodevelopmental diagnoses but emphasized no causal link has been established and noted it remains the only over‑the‑counter option approved for treating fevers in pregnancy.
• Major medical groups, including the American College of Obstetricians and Gynecologists, continue to recommend judicious use for fever or significant pain in pregnancy, citing high‑quality studies such as a 2024 Swedish sibling‑controlled analysis that found no causal association.
• Clinicians report immediate effects in practice, with some parents delaying vaccines and others worrying they harmed children by taking acetaminophen during pregnancy, and some neonatal cases refusing Tylenol for conditions historically managed with the drug.
• Officials such as Dr. Mehmet Oz and Vice President JD Vance urged patients to follow physician guidance, while the administration also touted movement toward considering leucovorin for certain autism‑related cases that specialists say may help only a subset of children.