Hi @dougal. My oncologist had me do a bone density scan before I started on Letrozole. I started on it two days before my 52nd birthday. I was shoved into menopause by chemo, and she said it was 50/50 whether I took Tamoxifen or Letrozole, gave me leaflets and asked me to choose! I said I couldn't possibly as I was not the expert and that I would do what she advised. She said Letrozole was fractionally better so that's how I went.
I now have a different oncologist (old one left private practice). She has me do a blood test every three months to check my hormone levels as she she's had more than a few women begin menstruating again on Letrozole, as late as 55 years old.
No grapefruit allowed while you're taking Letrozole! K xox