Aromasin (Exemestane)


Exemever [Aromasin] (Exemestane) SC VERMODJE SRL (Moldova)


Exemestane (Aromasin) is a third generation aromatase inhibitor. In medical practice Exemestane is used as a treatment for breast cancer in postmenopausal women. In sports it is popular among athletes for its ability to suppress estrogenic side effects of AAS.

Its mechanism of action is similar to other aromatase inhibitors, such as Letrozole and Arimidex (Anastrozole). However, unlike them, athletes often use Exemestane after steroid cycle.

Since many AAS are prone to aromatization (i.e. conversion into female hormones) it leads to estrogen related side effects. They include water retention and gynecomastia. The latter is probably the worst of them. As to the water retention, it may significantly increase blood pressure.

One should remember that non-aromatizable steroids may also cause estrogenic side-effects if they have progestogenic activity. For instance, Nandrolone Decanoate has 5 times less aromatization in comparison with Testosterone. However, it may cause gynecomastia through progestogenic activity.

Exemestane is able to eliminate the risks of estrogenic side effects. According to the recent study, it reduces the levels of estradiol by 85 percent. Besides, when taking Aromasin (Exemestane) after steroid cycle one can speed up the secretion of endogenous testosterone.

Therefore some bodybuilders include Exemestane into PCT plan. Letrozole and Arimidex (Anastrozole) have similar effects. They send a signal to pituitary about the necessity for gonadotropic hormones (luteinizing and follicle-stimulating).

However, Exemestane has some advantages over these drugs

  • Has low androgenic activity.
  • Accelerates secretion of insulin-like growth factor


By using Exemestane after steroidcycle one can faster restore the endogenous testosterone production. Besides, it increases the levels of insulin-like growth factor, thus enhancing anabolism.
The effects of Exemestane

  • Prevents gynecomastia.
  • Suppresses the level of female hormones.
  • Increases anabolism
  • Improves muscular relief.
  • Prevents hypertension.
  • Reduces the negative effect of estrogens on HPTA.

It is important to know that only aromatizable and progestogenic steroids can cause estrogenic side-effects. The primary aromatizable steroid is Testosterone. However, its derivatives can enhance the work of estrogens, for instance methandienone.

Meanwhile the rate of aromatization of Boldenone Undecylenate is 50 percent in comparison with Testosterone. This is not enouph for a rapid increase of estrogen levels. Although Trenbolone and Nandrolone Decanoate have very low level of aromatization, their progestogenic activity may increase the concentration of female hormones to critical level.

The susceptibility to estrogenic (progestogenic) side-effects greatly depends on genetic predisposition of an athlete. However if you use these drugs in combination with easily aromatizing steroid, the risk of estrogenic side effects increases.

No matter what steroid you use, Exemestane will protect you from side effects. In sports pharmacology there are steroids based on dihydrotestosterone derivatives. Basically they are not aromatizable. An exception to this rule is oxymetholone, which has estrogenic activity.But it does not interact with aromatase, therefore Aromasin (Exemestane) will have no effect during Anapolone cycle.

Dosage and Usage

Now let’s regard the usage of Exemestaneafter steroid cycle. We know that AAS can suppress the endogenous testosterone production. The degree of this negative effect depends on the doses of steroid you use.

One should remember that even the lightest steroid at high doses can negatively affect HPTA. After steroid cycle the body begins to produce testosterone again, but only when exogenous hormone is over.
It takes a lot of time for the body to recover and it depends on the individual characteristics of an athlete’s organism. In worst case it takes about a year. The testosterone deficiency is abnormal for the body, and it may lead to definite health issues. For example is increases the levels of cortisol, which destroys muscles, and decreases sex drive.

Therefore, you should follow PCT (Post Cycle Therapy) in order to speed up testosterone production. Some bodybuilders take Aromasin during PCT in order to accelerate testosterone synthesis and increase the level of insulin-like growth factor. However, we do not recommend it, since the balance of female and male hormones is also important for the body.

Scientists found out that estradiol regulates the balance of lipoproteins, affects the libido etc. Thus by suppressing its production you can adversely affect other functions of your body. That’s why we recommend using Exemestane only during steroid cycle.

The recommended doses of Aromasin (Exemestane) vary from 12.5 to 25 mg every other day. However, in most cases it is enough for an athletes to use 12.5 mg no more than three times a week. If you take maximal doses, then the duration of Aromasin (Exemestane) cycle should not be long.

Use 25 milligrams only in the case of cholesteroldis balance. In other cases take minimal doses. Competitive bodybuilders also take Exemestaneone or two weeks before the contest in order to improve muscular relief.

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