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Fosfestrol is used to treat prostate (a gland in the male reproductive system) cancer.

How it works

Fosfestrol belongs to the class of the medications called as antineoplastic agents. It is an inactive synthetic estrogen (female sex hormone) which is converted in the body to active estrogen. Prostate cancer grows more rapidly under the influence of androgen (male sex hormone). Fosfesterol acts by lowering the blood levels of androgen thereby stopping cancer growth.

Common side effects

Vomiting, Nausea, Perineal pain, Diarrhoea, Dizziness, Fever, Increased blood pressure, Loss of appetite, Itching


Expert advice

  • Tell your doctor if you have diabetes, cardiovascular disease, disease of the blood vessels in and around the brain (cerebrovascular disease), disorders that increase the risk of blood clots in the blood vessels (thromboembolic disorders), high blood pressure (hypertension) and liver disease.
  • Exercise caution if you are an elderly patient.
  • Do not take if allergic to fosfestrol or any of its ingredients.
  • Do not take if Pregnant or breastfeeding women.
  • Do not give to Children.

Content on this page was last updated on 03 October, 2016, by Dr. Varun Gupta (MD Pharmacology)