Tamoxifen, sold under the brand name Nolvadex among others, is a selective estrogen receptor modulator used to prevent breast cancer in women and men. [15] It is also being studied for other types of cancer. [15] Get clear safety guidance for Nolvadex, including warnings, precautions, when to seek medical assistance, and how to use it correctly. CAL PHARMACOLOGY NOLVADEX is a nonsteroidal agent that has demonstrated potent antiestrogenic properties in ani. l test systems. The antiestrogenic effects may be related to its ability to. Nolvadex (Tamoxifen Citrate) may treat, side effects, dosage, drug interactions, warnings, patient labeling, reviews, and related medications including drug comparison and health resources. Nolvadex is a selective estrogen receptor modulator used for the treatment of breast cancer by blocking the effects of the estrogen hormone in the body. Tamoxifen (Nolvadex® or Soltamox®) is a drug that treats hormone receptor-positive (hormone-positive) breast cancer. (Hormone-positive breast cancer is a type of cancer that needs estrogen and/or progesterone to grow.) NOLVADEX is a prescription medicine that is like estrogen (female hormone) in some ways and different in other ways. In the breast, NOLVADEX can block estrogen’s effects. Tamoxifen (Nolvadex) is a selective estrogen receptor modulator (SERM). It’s used to treat early stage and advanced or metastatic hormone receptor-positive (HR+) breast cancer in males and females. Nolvadex package insert / prescribing information for healthcare professionals. Includes: indications, dosage, adverse reactions and pharmacology. Nolvadex is a medication that is primarily used for the treatment of breast cancer. It can also be used to prevent breast cancer in women who are at high risk and to treat infertility in women.