When it comes to reducing fever or relieving pain in children, TYLENOL® is the brand recommended most by pediatricians. Children’s TYLENOL® works differently than other pain and fever medicines. Children’s TYLENOL® contains acetaminophen and is gentle on little stomachs. It also comes in a variety of kid-friendly flavors. Learn more Zyrtec Zyrtec ZYRTEC starts working fast at hour 1 and provides 24-hour allergy relief.