I'm on Propecia, I take half a pill each day. Works very well for hairloss, but no miracle drug either I'm afraid. The shedding stopped my first week of taking it and gradually after a few months my hair looked a lot thicker. I was very happy with that! But on the other side, it still isn't the fullest it ever was. But I hear that's hardly possible. Which is why you have to get help for this problem real soon. The sooner you treat the hairloss, the most chance you have that your hair recovers (I read that if you leave it untreated the hair follicles of the hairs that have fallen out, die).
If a doctor doesn't want to prescribe it to you, can't you just go to a pharmacy and say (lie) that you ran out of prescriptions but need this and you can't wait for your appointment becaus that's in three months and your hormones will be out of wack. Say that you will bring the prescription after your appointment. I know it's not very ethical, but I do that sometimes. and then I never go back.
Not sure about dutasteride. I read a lot of positive things (
www.hormonehelpny.com), but I asked my endo today and she says it's not on the market yet. It will be in October.