er positive and her2pos different?

Hi all I thought er pos and her2pos was the same thing and connected. Can someone help me out? I have both. Im on herceptin for her2pos but thought I was starting tamoxifen for the same reason. So do the two positives have no connection to each other? Is the tamoxifen for the er pos and nothing to do with her2? Thanks for any replys.

Hi Debs

Here’s the information for the two areas you have queried as they are different:

breastcancercare.org.uk/breast-cancer-information/treating-breast-cancer/hormone-therapy

breastcancercare.org.uk/breast-cancer-information/about-breast-cancer/her2

Best wishes
Lucy BCC