Generic Femara (Letrozole)

Femara(Letrozole) is a highly selective non-steroidal aromatase inhibitors, the main area to demonstrate how the struggle with excessive activity of the enzyme aromatase, since estrogens are formed only of androgens, products of which the male takes place mainly in the testes and adrenal glands in a bit.

A conversion into estrogen occurs when the enzyme aromatase which is not bad because without the normal aromatization of androgen effects on the body is not possible. So is not possible and muscle growth. But as a result of excess aromatization process of androgens are converted into estrone sulfate and estradiol, contributing to the negative effects of manifestations of the so-called gynecomastia, the accumulation of fatty deposits on the female type, etc.

Anastrozole and Generic Femara provides a persistent suppression of serum estradiol during the whole period of its validity, that is, reduces the concentration of estrogen in the body. Femara(Letrozole) and Arimidex literally save lives women are not responsive to tamoxifen. The main reason Anastrozole and Letrozole used in bodybuilding is that they do not have an adverse effect on steroidogenesis. That is, the application of anastrozole and Femara does not require replacement (complementary) steroid treatment required in the application of aminoglutethimide.

Resistance Anstrozola and Femara no rx due to the high level of prolactin in this period of recovery in endocrine systems and the use of anastrozole required Letrozala reception antiprolaktinovyh drugs. Although both drugs have a positive effect on the inhibition of prolactin.

It is also interesting combination of anastrozole and letrozole with Exemestane (Aromasin), which by its effect on the recovery of the endocrine system is not inferior to Aminoglyutemidu. The same must be said that Femara(Letrozole) without prescription is a more potent drug than Anastrozole (proven clinical experience), but this difference is understandable only in the treatment of oncological pathologies, that is, to us it will not be noticeable.

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Femara is a specific nonsteroidal aromatase inhibitor. It inhibits the aromatase enzyme by competitively binding to the haem of the cytochrome P450 subunit of the enzyme, resulting in a reduction of estrogen biosynthesis in all tissues.

Breast cancer

Femara online exerts its antitumour effect by depriving estrogen dependent breast cancer cells of their growth stimulus. In postmenopausal women, estrogens are derived mainly from the action of the aromatase enzyme, which converts adrenal androgens-primarily androstenedione and testosterone-to-estrone (E). The suppression of estrogen biosynthesis in the peripheral tissues and the malignant tissues can be achieved by specifically inhibiting the aromatase enzyme. Impairment of adrenal steroidogenesis has not been observed.

Induction of ovulation in Infertility

Estrogen exerts a negative feedback on the hypothalamic-pituitary axis and decreases the release of FSH from the pituitary gland. Letrozole acts by blocking the synthesis of estrogen. Administration of letrozole in the early part of the menstrual cycle results in release of FSH from the pituitary gland. Femara acts by blocking the feedback, thereby increasing gonadotropin secretion and resulting in stimulation of ovarian follicle. Letrozole leads to induction of ovulation in women with anovoluatory infertility. Femara does not deplete estrogen receptor or produce a negative effect on the endometrium. Addition of letrozole to gonadotropins decreases gonadotropin requirements, increases the number of preovulatory follicles, and decreases endometrial thickness without a negative effect on pregnancy rates.

Induction of ovulation in anovulatory infertility

Patient selection for the treatment of infertility should be done with care and pelvic examination should be performed prior to letrozole administration and before each subsequent course. The patient should be instructed to inform the doctor of any abdominal or pelvic pain, weight gain or discomfort. Endometrial biopsy should always be performed prior to letrozole therapy in this population. Caution should be exercised when using letrozole in patients with uterine fibroids due to the potential for further enlargement of the fibroids.

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