This guide does not tell you everything about NOLVADEX and does not nolvadex barata mexicana take the place of talking with your doctor. There have been small number of reports of vaginal bleeding, spontaneous abortions, birth defects, and fetal deaths in pregnant women. In fact, if were limited to just one compound to aid me in post-cycle-recovery, Nolvadex would be my choice. Two European trials of tamoxifen to reduce the risk of breast cancer were conducted and showed no difference in the number of breast cancer cases between the tamoxifen and placebo arms. In cytosols derived from human breast adenocarcinomas, tamoxifen competes with estradiol for estrogen receptor protein.