( December 18, 2024, 11:47 AM EST) -- DES MOINES, Iowa — A vaping advocacy association and five businesses that sell synthetic nicotine-containing vape products on Dec. 17 filed a complaint and a motion for a preliminary injunction in Iowa federal court seeking to bar a new state law that would allow enforcement actions for sales of vape products not yet authorized by the U.S. Food and Drug Administration and contains no exception for synthetic nicotine products under FDA review....