But I have a problem. I would like to know if is possible to pass the
content of my element <droga></droga> (ex:<droga>português</droga>,
<droga>tricíclicos</droga>) to the field "value" of the input tag (<input
type"hidden" name="nome" value="português">) whithout passing "portugu&ecierc;s" that I obtain after the
transformation.

As far as the HTML is concerned, both are the same
strings. Do you have trouble to get the correct value
in the input field, or to get it back correctly into
the application which processes the answer?