XTANDI is a prescription medicine used to treat men with prostate cancer that:

  • no longer responds to a hormone therapy or surgical treatment to lower testosterone
  • OR

  • has spread to other parts of the body and responds to a hormone therapy or surgical treatment to lower testosterone

It is not known if XTANDI is safe and effective in females or children.

Ken, an XTANDI patient.

How XTANDI works

XTANDI is an androgen receptor inhibitor. Androgens are a group of hormones that includes testosterone. Androgen receptor inhibitors interfere with the connection between androgens and androgen receptors. This can help slow cancer cell growth.

Imagine the inside of a prostate
cancer cell as a puzzle

Prostate cancer cell

Prostate cancer cell

When androgen connects with an androgen receptor, it may cause tumor cells to grow.

How XTANDI works

XTANDI helps to decrease how often androgen can connect with an androgen receptor. As a result, the prostate tumor may stop growing and the cancer cells may die.

Prostate cancer cell

How XTANDI works

XTANDI helps to decrease how often androgen can connect with an androgen receptor. As a result, the prostate tumor may stop growing and the cancer cells may die.

Select Safety Information

XTANDI may cause serious side effects including Posterior Reversible Encephalopathy Syndrome (PRES). If you take XTANDI you may be at risk of developing a condition involving the brain called PRES. Tell your doctor right away if you have a seizure or quickly worsening symptoms such as headache, decreased alertness, confusion, reduced eyesight, blurred vision or other visual problems. Your doctor will do a test to check for PRES.

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