Nasal spray decongestants work by constricting the blood vessels and tissues in your sinuses. ... (found in 4-Way, Neo-Synephrine, Nostril, Pretz-D, Rhinall, Tur-Bi-Cal, Vicks Sinex, Sudafed PE) ...

Parnell Pharmaceuticals in San Rafael is seeking approval from the U.S. Food and Drug Administration to market a nasal spray for prevention of COVID-19 ... Pretz Spray, a moisturizing nasal spray.