Hi Owly, Sorry to hear of your diagnosis. As I remember it, my BC surgeon prescribed my AIs but my GP also writes prescriptions for me. So, I think it's possible that a GP will prescribe it for you if they've seen your pathology results. An oncologist can also prescribe it for you. I'm wondering if you are post-menopausal? As I understand it, the norm is to prescribe Tamoxifen if you're pre-menopausal and an AI if you're past that stage. But your clinician will advise you on the appropriate option for you. Have you started with any treatment for your cancer yet (surgery or other?). Good luck with it.