De or het startdosis?

The correct Dutch article is:

de startdosis

How to use startdosis

the startdosisde startdosis
this startdosisdeze startdosis
that startdosisdie startdosis
our startdosisonze startdosis
your startdosisjouw startdosis
every startdosiselke startdosis
which startdosis?welke startdosis?
a big startdosis / the big startdosiseen grote startdosis, de grote startdosis