CAS NO 112809-51-5 Anti Estrogen Steroids 99% Purity Femara Letrozole 2.5MG Pills

99% Purity Femara Letrozole Anti Estrogen Steroids CAS NO 112809-51-5 Pill

Letrozole Femara Basic Info:

Name:Letrozole
Alias:Femara
Dosage: 2.5MG
Assay: 98.0-102.0%
CAS: 112809-51-5
Usage: Anti estrogen
Appearance: White crystalline powder.
Active life cycle : 6 hours
MW: 285.3
MP: 181-183 degrees
Half-life: Letrozoles 2-4 day

Description:

Letrozole is a powerful Aromatase Inhibitor that was developed to fight breast cancer. For athletes and bodybuilders, it is a drug used to combat the estrogenic side effects of anabolic steroids water-retention, acne and gynocomastia. It will also raise testosterone levels because of the lowered estrogen in the body. Side effects from Letrozole include a lowered sex drive and continuous use can lead to lowered lipid function and an impaired immune system.

Application:

Letrozole has been used for ovarian stimulation by fertility doctors since 2001 because it has fewer side-effects than clomiphene (Clomid) and less chance of multiple gestation. A Canadian study presented at the American Society of Reproductive Medicine 2005 Conference suggested that letrozole may increase the risk of birth defects.

A more detailed ovulation induction follow-up study found that letrozole, compared with a control group of clomiphene, had significantly lower congenital malformations and chromosomal abnormalities at an overall rate of 2.4% (1.2% major malformations) compared with clomiphene 4.8% (3.0% major malformations). Despite this, India banned the usage of letrozole in 2011, citing potential risks to infants.In 2012, an Indian parliamentary committee said that the drug controller office colluded with letrozole's makers to approve the drug for infertility in India and also stated that letrozole's use for infertility was illegal worldwide; however, such off-label uses are legal in many countries such as the US and UK.

The anti-estrogen action of letrozole has been shown to be useful in pretreatment for termination of pregnancy, in combination with misoprostol. It can be used in place of mifepristone, which is expensive and unavailable in many countries.

Letrozole is sometimes used as a treatment for gynecomastia, although it is probably most effective at this if caught in an early stage (such as in users of anabolic steroids).

Letrozole has also been shown to delay the fusing of the growth plates in mice.When used in combination with growth hormone, letrozole has been shown effective in one adolescent boy with a short stature.

Letrozole Usage:

Letrozole is approved to be used alone or with other drugs to treat:

Breast cancer in postmenopausal women who have any of the following types of breast cancer--
Early-stage, hormone receptor positive (HR+) breast cancer in women who have already received other treatment.
Early-stage breast cancer that has been treated with tamoxifen citrate for at least five years.
Breast cancer that is locally advanced or has metastasized (spread to other parts of the body), is HER2 positive (HER2+) and HR+.
Breast cancer that is locally advanced or has metastasized and it is not known whether the cancer is HR+ or hormone receptor negative (HR-).
Advanced breast cancer that has gotten worse after antiestrogen therapy.
Letrozole is also being studied in the treatment of other types of cancer.

More About Letrozole:

Definition from the NCI Drug Dictionary - Detailed scientific definition and other names for this drug.

MedlinePlus Information on Letrozole - A lay language summary of important information about this drug that may include the following:

warnings about this drug,
what this drug is used for and how it is used,
what you should tell your doctor before using this drug,
what you should know about this drug before using it,
other drugs that may interact with this drug, and possible side effects.
Drugs are often studied to find out if they can help treat or prevent conditions other than the ones they are approved for. This patient information sheet applies only to approved uses of the drug. However, much of the information may also apply to unapproved uses that are being studied.

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