Relugolix is used to treat advanced prostate cancer (cancer that begins in the prostate [a male reproductive gland]) in adults. Relugolix is in a class of medications called gonadotropin-releasing hormone (GnRH) receptor antagonists. It works by decreasing the amount of testosterone (a male hormone) produced by the body. This may slow or stop the spread of prostate cancer cells that need testosterone to grow.

Relugolix comes as a tablet to take by mouth. It is usually taken with or without food once daily. Take relugolix at around the same time every day. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take relugolix exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.

MedlinePlus Information on Relugolix - A lay language summary of important information about this drug that may include the following:

• ● warnings about this drug,
• ● what this drug is used for and how it is used,
• ● what you should tell your doctor before using this drug,
• ● what you should know about this drug before using it,
• ● other drugs that may interact with this drug, and
• ● possible side effects.

Drugs are often studied to find out if they can help treat or prevent conditions other than the ones they are approved for. This patient information sheet applies only to approved uses of the drug. However, much of the information may also apply to unapproved uses that are being studied.