How does hormone therapy work?
To grow, the prostate cancer cells need the male hormone testosterone. Hormone treatments work in different ways to prevent testosterone stimulating the prostate cancer cells. The LHRH agonists and GnRH antagonists will prevent testosterone from being produced by the testicles and are given as an injection. The anti-androgens block the action of testosterone on the prostate cancer cells and are given as tablets. They are both effective in treating this stage of prostate cancer but have different side effects.
You may receive hormone therapy on its own or in combination with other treatments, such as radiotherapy.
It is important to know that many people will experience emotional as well as physical side effects while on hormone therapy. Many men on hormone therapy have less energy and feel less motivated, and you may also experience changes in your mood, such as feeling more sentimental, more irritable or more tearful than usual. This is nothing to be ashamed of.