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Dermatology/Finasteride and male breast cancer gene

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Question
QUESTION: Hello

Sir if one have male breast cancer gene, then is it advisable to take finasteride or not for male pattern baldness? Can finasteride in such case provoke male breast cancer?

ANSWER: Finasteride has been show to cause breast cancer and prostrate cancer. If you have the breast cancer gene I would not take the finasteride.

---------- FOLLOW-UP ----------

QUESTION: Dr fisher, if one does NOT have male breast cancer gene, then even in that case can finasteride cause male breast cancer?

Answer
The answer to your question is yes. However, I have written thousands of prescriptions of finasteride and have never seen any breast cancer. In 2009 only 53 men world wide were known to have breast cancer from this drug and millions of scrips were written.

Dermatology

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Michael S. Fisher, <B>Ph.D., M.D.</B>

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