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0.5mg – 100 Tabs Per Bottle

Arimidex (Anastrozole) is the a Type II non-steroidal aromatase inhibitor. It prevents the enzyme that converts hormones to estrogen from bonding that the receptor. It is over 50% effective at reducing the conversion of testosterone to estrogen. Although originally developed as a treatment for breast cancer, it has become a popular staple for performance enhancing athletes for reducing the side effects of excessive estrogen from androgen down regulation.

Arimidex is quite effective at suppressing estrogen down regulation and so you do run some risks with this drug in regards to negative effect of low estrogen. Low estrogen effects blood lipid profile, joints, and immune system function.


The use of high doses of aromatase inhibitors could lead to unwanted side effects such as:

  • slowed down muscle growth
  • pain in the joints
  • reduced bone strength
  • reduced libido
  • decrease in the general state of the body
  • depressed mood
  • increased cholesterol concentration

Exceeding Arimidex’s period of use can result in pronounced hormonal disturbances that have a negative impact on the athlete’s overall health.

Recommended dosage: 0.5 – 1mg-eod