A member asked:

Is it safe for breast cancer survivor to use victoza (liraglutide) for diabetes because the drug has thyroid cancer risk? i am worried.

2 doctors weighed in across 2 answers

Safe: There is an extremely small theoretic risk of getting a very rare type of thyroid cancer, called medullary thyroid cancer. This possibility was really only noted in rats during investigation of the drug. No increased incidence of this cancer has been found in people. It is a very effective and useful medication for diabetes. The benefits greatly outweigh any small risk of cancer.

Answered 9/29/2016

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Dr. Sumana Gangi answered

Specializes in Endocrinology

Victoza (liraglutide): Victoza (liraglutide) is shown to cause medullary thyroid cancer (very rare cancer in humans)in rats.. Human incidence not known.. No association with breast cancer.

Answered 2/22/2014

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