Dotsie,
My mom used tamoxifin after her mastectomy a few years ago. Of course, she's older, so that's a factor. But she suffered from mini strokes (blood clots) and hasn't been quite up to snuff. She also developed eye problems, another of the "side effects." My sister convinced her to quit taking it. There's tons of info on the internet about it, and some of the latest studies aren't all that good. I'm sending you a link.