Yes I take Tamoxifen but a genetic brand called Genox02. The tamoxifen brand gave me lots of side effects, but changing I only have a few, and I can cope with them. Just moving the time I take it now as I was noticing bad headaches, so I am taking it at night but a bit earlier before dinner as when I go to bed I cannot sleep. gr gr. I have had issues with my cervix wall increasing in size , keeping an eye on it , had a biopsy and it was clear Thank goodness !!! so just an internal U/s and a outside u/s scan in March , will be discussing it with my oncologist next visit. Unfortunately a side effect. Dammed if you do and dammed if you don't !!. Good luck and make sure you have a side effect of these drugs, that are on this site for you. take care xx