@Millie I thought that Tamoxifen worked by competing with estrogen when the latter was trying to attach to a tumour, thereby blocking the fuel supply and slowing/stopping tumour growth. Which leaves the rest of the body to use the estrogen it produces, unlike an AI which stops the production of estrogen altogether.
The Alzheimers thing worries me terribly. It was one of the questions I put to the doctors in the recent webcast but they didn't answer it. They didn't answer any of them...
Hope you're travelling OK. K xox