Dvorge: each of the links you have provided only talks about 1 ingredient, not both. The link on Desenex only talks about one of the two ingredients (U. acid or miconazole), the next link also only talks about one of the two ingredients, etc.
Me thinks that is because those two molecules are not the same thing, no?
It is important because someone may have tried a product with one of those ingredients, for example miconazole, and not gotten success, yet still have the opportunity to hope for success with a different product that has the other ingredient - U. acid.