After a dose of Lynparza, the drug remains in your system for about 3 days (75 hours).

This is based on the drug’s half-life, which is 15 hours. It takes about 5 half-lives for a drug to be cleared from your system.

Generally, Lynparza is a long-term treatment. How long you’ll take Lynparza depends on the cancer you are treating, how well the treatment is working, and whether you experience side effects from the medication.

  • Early breast cancer: It’s recommended to take Lynparza for up to 1 year.
  • Ovarian cancer: It’s recommended to take Lynparza for up to 2 years.
  • Prostate cancer, pancreatic cancer, and metastatic breast cancer: There’s no specific time limit for how long you should take Lynparza.

Your doctor will check your symptoms, do blood tests, and have you do scans to make sure Lynparza is working to treat your cancer.

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Most likely, yes. In most cases, side effects of Lynparza are temporary and easily managed. They may go away with time as your body gets used to the medication.

But it’s also possible for Lynparza to cause long-term side effects, including myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML) (types of cancer that affect your blood cells or bone marrow). These side effects can occur after you’ve taken Lynparza for years and can last for a long time.

If you have symptoms that are ongoing or bothersome, talk with your doctor or pharmacist. Do not stop taking Lynparza unless your doctor recommends it.

If you develop serious side effects while taking Lynparza, call your doctor right away. If the side effects seem life threatening or you think you’re having a medical emergency, immediately call 911 or your local emergency number.

Disclaimer: While Healthline strives for factual, comprehensive, and current information, this article is not a substitute for a licensed healthcare professional’s expertise. Always consult a doctor before taking or discontinuing any medication. Drug information is subject to change and may not cover all uses, directions, precautions, warnings, interactions, reactions, or adverse effects. The lack of a warning does not guarantee a drug’s safety, effectiveness, or appropriateness for all patients or specific uses. Learn more about our approach to content integrity.