Review: could Mirena cause Breast Cancer?


Breast cancer is found among people who take Mirena, especially for people who are female, 40-49 old , have been taking the drug for 2 - 5 years, also take medication Climara, and have Contraception . We study 74,977 people who have side effects while taking Mirena from FDA and social media. Among them, 457 have Breast cancer. Find out below who they are, when they have Breast cancer and more.

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Mirena has active ingredients of levonorgestrel. It is often used in birth control. (latest outcomes from Mirena 75,364 users)

Breast Cancer

Breast cancer has been reported by people with breathing difficulty, fever, rashes, diarrhea, joint pain (latest reports from 85,598 Breast cancer patients).

On Aug, 25, 2016

74,977 people reported to have side effects when taking Mirena.
Among them, 457 people (0.61%) have Breast Cancer

Number of reports submitted per year:

Could Mirena cause Breast cancer?

Time on Mirena when people have Breast Cancer *:

  • < 1 month: 6.94 %
  • 1 - 6 months: 15.28 %
  • 6 - 12 months: 7.64 %
  • 1 - 2 years: 19.44 %
  • 2 - 5 years: 33.33 %
  • 5 - 10 years: 17.36 %
  • 10+ years: 0.0 %

Gender of people who have Breast Cancer when taking Mirena *:

  • female: 99.78 %
  • male: 0.22 %

Age of people who have Breast Cancer when taking Mirena *:

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 2.54 %
  • 30-39: 24.64 %
  • 40-49: 55.07 %
  • 50-59: 17.39 %
  • 60+: 0.36 %

Severity if Breast Cancer when taking Mirena **:

  • least: 0.0 %
  • moderate: 0.0 %
  • severe: 100 %
  • most severe: 0.0 %

How people recovered from Breast Cancer **:

  • while on drug: 100 %
  • after off the drug: 0.0 %
  • not yet: 0.0 %

Top conditions involved for these people *:

  • Contraception (163 people)
  • Menorrhagia (29 people)
  • Hormone Replacement Therapy (6 people)
  • Uterine Leiomyoma (5 people)
  • Prophylaxis (5 people)

Top co-used drugs for these people *:

  • Climara (6 people)
  • Provera (4 people)
  • Nordette-21 (4 people)
  • Estinyl (4 people)
  • Activella (4 people)

* Approximation only. Some reports may have incomplete information.

** Reports from social media are used.

How to use the study: print a copy of the study and bring it to your health teams to ensure drug risks and benefits are fully discussed and understood.

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NOTE: The study is based on active ingredients and brand name. Other drugs that have the same active ingredients (e.g. generic drugs) are NOT considered.

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