nasacortSanofi and its U.S. consumer healthcare division Chattem have introduced Nasacort Allergy 24HR Nasal Spray over-the-counter (OTC) in the U.S. to relieve the full range of seasonal and year-round nasal allergy symptoms, including nasal congestion, in adults and children two years of age and older. Nasacort Allergy 24HR is the first and only medicine in its class to be available at full strength without a prescription. The packaging for Nasacort Allergy 24HR was designed by The Goldstein Group, NYC.