It is very effectively used to clear and clean the passages of nasal, head and throat. It is specifically used to clear and clean up nasal discharge in young horses as a complication of distemper or some other same disorder. It can be applied very lightly in each nostril, before any race or performance; it helps to breathe easily during the race and performance. Formula 707 clearex can also be used on the throat to loosen the congestion in respiratory tract.