Oral Contraceptive Female Steroids Megestrol Acetate Powder 595-33-5 For Treat

Oral Contraceptive Female Steroids Megestrol acetate Powder CAS: 595-33-5 For Treat Dysmenorrhea

Megestrol acetate Powder Description:
Megestrol acetate has powerful antiandrogenic and antiestrogenic effects in humans at sufficient doses, capable of decreasing circulating androgen and estrogen concentrations to castrate levels in both sexes and significantly lowering the expression of the androgen receptor (AR) and the estrogen receptor (ER) in the body.

As an example, one study in men with benign prostatic hyperplasia who were treated with 120-160 mg of megestrol acetate per day for 3 to 11 days found average decreases in AR quantity of 73% and 86% in the cytoplasm and nucleus of prostatic cells.

These actions are likely the result of a strong activation of the PR, which suppresses the secretion of the gonadotropins-peptide hormones responsible for signaling the body to produce not only progesterone but also the androgens and the estrogens-from the pituitary gland as a form of negative feedback inhibition.

And hence downregulates the hypothalamic-pituitary-gonadal (HPG) axis, resulting in decreased levels of the sex hormones and their associated enzymes, carriers (e.g., sex hormone-binding globulin), and receptors.

It is the antiandrogenic and antiestrogenic effects of megestrol acetate mediated by suppression of the HPG axis that are believed to be largely responsible for its beneficial effects against androgen and estrogen-sensitive cancers, respectively.

Megestrol acetate Powder Usage:
Mainly used for short-acting oral contraceptives, also can be used for intramuscular injection of long-acting contraceptives.

For the treatment of dysmenorrhea, amenorrhea, dysfunctional uterine bleeding, endometriosis and endometrial adenocarcinoma.

Megestrol acetate is used mainly as an appetite stimulant in a variety of conditions and as an antineoplastic agent in the treatment of breast, endometrial, and prostate cancers.

When given in relatively high doses, it can substantially increase appetite in most individuals, even those with advanced cancer, and is often used to boost appetite and induceweight gain in patients with cancer or HIV/AIDS-associated cachexia. It is also used as a contraceptive in combination with an estrogen at relatively low doses.

In addition to its use in humans, megestrol acetate has been used extensively in veterinary medicine in the treatment of medical conditions in cats and dogs.

Oral Contraceptive Female Steroids Megestrol Acetate Powder 595-33-5 For Treat Images