To af de aktive stoffer i Posatex, orbifloxacin og posaconazol, virker mod årsagen til infektionen, mens det tredje, mometasonfuroatmonohydrat, virker mod betændelsen.
Two of the active substances in Posatex, orbifloxacin and posaconazole, work against the cause of the infection, while the third one, mometasone furoate monohydrate, works on the inflammation.