One of my local EndoWarriors has started a new medication to help with her Endometriosis pain and symptoms, based upon the recommendation of her new physician.  It’s Letrozole, which I had never heard of.  And she asked me if I had any info on it…so…now I’m inspired to do some research!

What is Letrozole?

Letrozole is the generic name for Femara, a drug classified as an aromatase inhibitor.  What is aromatase?  It’s an enzyme that is crucial in the creation of estrogen. Aromatase inhibitors have been FDA approved for treating breast cancer in post-menopausal patients.  However, it has piqued the interest of the medical community in controlling Endometriosis symptoms.  It is not yet FDA approved for this treatment, but is used as an off-label, accepted treatment among the medical community. As of today’s research, there are no indications that drug manufacturers are going to seek FDA approval for aromatase inhibitors to treat Endometriosis.

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