What Happens To Your Body When Taking an Estrogen Blocker? | Alpha Pharm Canada

What Happens To Your Body When Taking an Estrogen Blocker?

Drugs or dietary supplements called estrogen blockers are intended to lower the body’s estrogen levels. An estrogen hormone is essential for the growth and upkeep of female reproductive organs and secondary sex traits. It helps control the menstrual cycle and other biological processes and is also generated in small levels in men.

Selective estrogen receptor modulators (SERMs) and aromatase inhibitors are two examples of several kinds of estrogen blockers. Drugs known as SERMs bind to estrogen receptors in the body and prevent estrogen from having desired effects. Drugs known as aromatase inhibitors prevent the enzyme aromatase from turning androgens (male hormones) into estrogen.


Reasons Why Estrogen Blocker is Taken for Some People

There are numerous conceivable justifications for using an estrogen blocker. Because estrogen can promote the growth of some breast cancer cells, estrogen blockers are frequently used to treat breast cancer in female patients. They are occasionally used to treat other disorders like endometriosis and uterine fibroids. gynecomastia, a disorder where the breasts grow, can be treated in men with estrogen blockers.

Estrogen blockers can affect the body in a variety of ways. The following are a few possible side effects of estrogen blockers:

  • Reduced menstrual flow: Menstrual flow may be reduced as a side effect of estrogen blockers since estrogen regulates the menstrual cycle.
  • Alterations in bone density: Estrogen helps to maintain bone density, and a long-term lack of it increases the risk of osteoporosis. Estrogen blockers may lower bone density, which raises the possibility of fractures. 
  • Reduced breast size: Because estrogen is involved in the growth of breast tissue, estrogen blockers may reduce breast size.
  • Changes in cholesterol levels: Both estrogen and estrogen blockers have the potential to impact cholesterol levels.
  • Mood changes: Estrogen regulates mood; therefore, estrogen blockers may result in depressive or anxious moods.


Estrogen Blocker Side Effects

Depending on the precise medication or dietary supplement used and the individual’s particular biology, estrogen blockers may potentially have additional effects on the body. Before using them, it’s critical to be informed of possible risks and side effects.

Estrogen blockers should only be used under the guidance of a healthcare professional due to their potentially harmful adverse effects. The following are a few adverse effects of estrogen blockers:

  • Risk of blood clots rising: Estrogen blockers may raise the chance of blood clots, which can be harmful if they reach the brain or lungs.
  • Stroke risk increase: Estrogen blockers may raise stroke risk, especially in smokers and those with high blood pressure in women.
  • Risk of heart attack rising: Estrogen blockers may raise heart attack risk, especially in smokers and those with high blood pressure.
  • Breast cancer risk increase: Although the evidence is unclear, some studies have suggested that estrogen blockers may raise the risk of breast cancer.
  • Estrogen blockers may result in a loss of bone density, which might raise the risk of fractures.



We have covered everything you must know about estrogen blockers, their benefits and their side effects. In conclusion, they are frequently used to treat problems including uterine fibroids, endometriosis, and female breast cancer. Gynecomastia in men may be treated with estrogen blockers. Estrogen blockers can alter the menstrual flow, bone density, breast size, cholesterol levels, mood, libido, and hot flashes, among other bodily functions.

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