Welcome to Healing Well, I am Kitt.
This family of medications (SSRIs or Selective Serotonin Reuptake Inhibitors)can have a negative effect on the sex drive (as well as, for some women, the ability to experience orgasm). Ask your psychiatrist about experimenting with other AD's.
It is a Catch 22, if you quit the meds do you deal with the depression without them? I am sorry I don't have a better answer but this same issue comes up frequently.
I know how tough it is and you have my support.
Take care and keep posting.