Was on anti-depressants on my intial employment, along with a course of benzos - aviation doctor was very open to discussion and saw my medical records and we had a great open and honest chat. He noted my honesty and we worked as a team firstly to slowly wean me off the medication and provide lifestyle alternatives. The use had occured due to the deaths of a couple of close friends.
Generally anti-depressants (benzos do) dont show up in drug screenings, but honesty is always the best policy if taking any medication.
Provided the treatment isnt for anything clinical then you should be ok.