Find out what hormone therapy is, when you might have it, and the possible side effects. They control the growth and activity of normal cells. Before the menopause, the ovaries produce the hormones oestrogen and progesterone. After the menopause, oestrogen is made in body fat. These hormones can stimulate the growth of some breast cancer cells. Hormone treatments lower the levels of oestrogen or progesterone in the body, or block their effects. Hormone therapy is only likely to work if the breast cancer cells have oestrogen receptors (ER). Your doctor checks your cancer cells for these receptors when you are diagnosed. Find out what tamoxifen is, how you have it and other important information about taking tamoxifen for breast cancer. Tamoxifen lowers the risk of early breast cancer coming back (recurring) after surgery or developing in the other breast. It can also control advanced breast cancer for some time. The liquid version of tamoxifen is called Saltamox. Whether you have a full or empty stomach can affect how much of a drug gets into your bloodstream. Never stop taking a cancer drug without talking to your specialist first. If you accidentally take more tamoxifen than you should, let your doctor or nurse know straight away. If you forget to take a dose, take the dose as soon as you remember, unless it is nearly time for your next dose. You have blood tests before and during your treatment. Don't take a double dose to make up for a forgotten dose. They check your levels of blood cells and other substances in the blood.
Sep 6, 2017. Tamoxifen is used mainly to treat hormone receptor-positive breast cancer breast cancer with cells that have estrogen and/or progesterone. Tamoxifen is a nonsteroidal antiestrogen that has found successful applications for each stage of breast cancer in the treatment of selected patients. Tamoxifen.