• Letrozole: Uses, Side Effects and Common Brands

  • Letrozole (Femara) is the most effective drug, representing a class of aromatase inhibitors (blockers), reducing the level of estrogen concentration, thereby increasing the gonadotropic hormones with testosterone. In medicine, inhibitors are predominantly prescribed during prophylactic treatment with male gynecomastia.

    Aromatase inhibitors are used by athletes into their diet during a cycle of anabolic steroid drugs. Inhibitory drugs are taken in cases:

    • Gynecomastia warnings;
    • Increased levels of anabolic hormones in the blood;
    • Improving the density of muscles (eliminating the negative effects of estrogenic substances);
    • Eliminate symptoms of hypertension;
    • Reducing estrogen pressure on the hypothalamus-pituitary-testes, which contributes to the fastest recovery.

    At the beginning of the cycle, it is recommended to consider the factor that not all existing anabolic steroids are aromatized. Letrozole is mainly used when using testosterone or its derivatives, for example, Methandienone or Methyltestosterone.


    In pharmacies Letrozole can be found from these manufacturers:

    Femara Dragon Pharma, Europe
    65.00 USD

    Mono-Femara Beligas Pharmaceuticals
    100.00 USD

    Letroxyl Kalpa Pharmaceuticals LTD, India
    40.00 USD

    Generic Femara Generic
    80.00 USD

    Letro-Lab 7Lab Pharma, Switzerland
    50.00 USD

    Letrozole Balkan Pharmaceuticals
    75.00 USD

    Out of stock

    Release Forms

    Letrozole is an antiestrogenic drug produced in tablets, covered with a special film coating. In one package - 3 blisters of 10 tablets with a dosage of 2.5 mg each one.


    Letrozole blocks the production of estrogen, replacing the compounds with proteins in aromatase receptors. Given the increased effectiveness, it is recommended to use it with extreme caution - do not deviate from the expected dosage, frequency and duration of use.

    Pharmachologic Effect

    Letrozole is rapidly and uniformly dissolved throughout the body and is taken orally. Approximately 55% of this drug is made up of proteins, excreted through the kidneys for two days (48 hours).

    Bodybuilding Usage

    In bodybuilding, Letrozole is recommended to be taken every other day at a rate of 0.5 mg. (1/5 part of one tablet). In cases of gynecomastia, 2.5 mg. per day until symptoms disappear completely, after which you need to return to a preventive dosage.


    It is forbidden to use Letrozole with the following symptoms:

    • Hypersensitivity;
    • Premenopausal period;
    • Impaired renal function;
    • Pregnancy
    • Breastfeeding.

    Also, while taking this drug, it is not recommended to drive vehicles and engage in other activities associated with the need for increased attention and concentration.

    This medication is not intended for children.


    Doses are selected individually according to results of a blood test, while taking into account usage of other drugs. Estimated average daily intake is from 1 to 2.5 mg with a cycle duration of 30 days. Schedules for taking Letrozole are discussed directly with a doctor.

    Side Effects

    Use of Letrozole in excess of prescribed norms in its instructions can lead to undesirable side effects such as:

    • Suspension of muscle growth;
    • Arthralgia (joint pain);
    • Bone weakening;
    • Increased blood cholesterol;
    • Decreased libido and significant deterioration in health;
    • Depression.

    In order to protect body from negative influences, it is categorically not recommended to independently increase the dose of this drug without consulting a doctor.


    Shelf life - 3 years from the date of manufacture indicated on package. Keep out of reach of children. Letrozole does not require special storage conditions.

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