What is an estrogen blocker

Aromatase inhibitors

what is an estrogen blocker

Men trying to manage their testosterone levels may turn to estrogen blockers to help balance their hormones. Find out about natural and pharmaceutical options.


Aromatase inhibitors are a class of medicines that work by blocking the enzyme aromatase, the enzyme that converts androgens into estrogen. Aromatase inhibitors are used in the treatment of breast cancer to reduce levels of circulating estrogen. This means that less estrogen is available to stimulate the growth of estrogen receptor ER positive breast cancer cells, slowing or inhibiting the progression of these cancers. Aromatase inhibitors are unable to prevent the ovaries from making estrogen, which means that they are only used to treat breast cancer in postmenopausal women. View by: Brand Generic.

In men, having too much estrogen can lead to weight gain, muscle tone loss, and higher levels of fatigue and mental confusion. That is where estrogen blockers come in. Estrogen is a hormone produced by the body that is primarily responsible for maintaining sexual and reproductive health in women. Estrogen is actually a broad term for a number of similar hormones such as estrone, estradiol, and estriol. In men, estrogen production is relegated to the adrenal gland, the testes, and fat cells throughout the body. Related: Looking to build more muscle?

As men age, their testosterone levels decrease. However, testosterone that decreases too much or too quickly may result in hypogonadism. Estrogen, primarily thought of as a female hormone, ensures that the male body functions properly. There are three types of estrogen:. Estradiol is the primary type of estrogen that is active in men. It also allows sperm to develop properly.

Hormones are chemicals the body naturally makes to control the growth and activity of normal cells. Hormones can also speed the growth of some types of cancer. For example, the hormones estrogen and progesterone can stimulate the growth of some breast tumors. Hormonal therapy is used to prevent or block hormones from speeding up the growth of cancer cells. It is also called hormone therapy or endocrine therapy. Different forms of hormonal therapy are used to treat breast, prostate, and endometrial cancers.

Hormone Therapy for Breast Cancer

Jeffrey D. Blaustein does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

How & When to use Estrogen Blockers for Men (Natural + Medications)

In this post we will discuss the benefit of estrogen blockers including who should consider using them, how they should be used and other signs and symptoms associated with estrogen problems :. When you think of estrogen you may be tempted to think that this hormone is only important for women. In men, these estrogen receptors are concentrated in the brain, penile vasculature, and the testes 1. Obviously, if these important areas have estrogen receptors then they must play an important role in sexual function. After all, why would the body have receptors for hormones if they served no purpose?

Some types of breast cancer are affected by hormones in the blood. ER-positive and PR-positive breast cancer cells have receptors proteins that attach to estrogen, which helps them grow.

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