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Letrozole (Steroids)  

Femara Anti-Estrogen Powder Letrozole 

CAS NO.: 112809-51-5

Molecular Formula: C17H11N5 

Molecular Weight: 285.31

White or light yellow crystal

Usage: Used as API in Treatment of breast disease.  

Effect: letrozole in postmenopausal patients with advanced breast cancer whose Estrogen receptor and / or progesterone receptor positive or receptor status unknown

Femara (letrozole) is a type II (non-steroidal) third generation aromatase inhibitor. Clinically it is used to treat postmenopausal women with either estrogen receptor positive or estrogen receptor unknown breast cancer.

1. Letrozole is a powerful Aromatase Inhibitor that was developed to fight breast cancer.

2. For athletes and bodybuilders, it is a drug used to combat the estrogenic side effects of anabolic steroids water-retention, acne and gynocomastia.

3. It will also raise testosterone levels because of the lowered estrogen in the body.

4. Femara(generic name is letrozole) is a new drug developed for the treatment of advanced breast cancer in women.

5. Femara is the second in a new class of third-generation selective oral aromatase inhibitors.

6. It acts by blocking the enzyme aromatase, subsequently blocking the production of estrogen.

Clomifene Citrate

Tamoxifen Citrate(nolvadex)

Tamoxifen

Exemestane

Anastrozole

Letrozole

Fulvestrant