Is Duexan safe?

I suppose it's Duexon. Duexon contains two active substances - salmeterol, which dilates the bronchi, and fluticasone propionate, which reduces swelling and irritation of the lungs. This drug should relieve breathing problems and possible inflammation. Duexon - like any drug - may or may not cause side effects. Inhalation administration, in which the drug is delivered directly to the place where it should work, is considered safe. I enclose additional information: https://www.gdziepolek.pl/artykuly/czym-sie-rozni-nebulizator-od-inhalatora