Please don't take what this as gospel. But someone posted that their oncologist had eased them into their hormone medication by taking only a part for some days, and working up to full dose. So it wasn't such a shock to the system. I wrote it down somewhere because I wanted to mention it when I get up to that stage.
I also found a book in my local library today, called 'Breast Cancer Answers: Practical Tips and Personal Advice from a Survivor' by Judy King (Publisher New Page Books). She has tips & strategies for dealing with all the usual possible side effects of treatment, includes sexual matters. Just looked it up on Amazon. Interesting Customer Review at the bottom:
http://www.amazon.com/Breast-Cancer-Answers-Practical-Personal/dp/1564147576