Shanghai Doublewin Bio-Tech Co., Ltd.
|Place of Origin:||China|
|Minimum Order Quantity:||10g|
|Packaging Details:||According to your requirements.|
|Delivery Time:||Within 24 hours after receiving your payment.|
|Payment Terms:||Western Union,Money Gram,Bank Transfer,Bitcoin|
|Assay:||99%||Appearance:||White Crystalline Powder|
estrogen blocker steroids,
Product name: Formestane
Other name: Lentaron; FORMESTAQNE; Hydroxyandrostenedione
CAS Registry Number: 566-48-3
Assay: 98%Packing: 1kg/aluminum foil bag
Molecular Formula: C19H26O3
Molecular Weight: 302.41
Appearance: White crystalline powder
Formestane was the first selective, type I, steroidal aromatase inhibitor used in the treatment of estrogen-receptor positive breast cancer in post-menopausal women. Formestane suppresses estrogen production from anabolic steroids or prohormones. It also acts as a prohormone to 4-hydroxytestosterone, an active steroid which displays weak androgenic activity in addition to acting as a mild aromatase inhibitor. It is listed as a prohibited substance by the World Anti-Doping Agency for use in athletes.
Formestane has poor oral bioavailability, and thus must be administered forthnightly (bi-weekly) by intramuscular injection. Some clinical data has suggested that the clinically recommended dose of 250mg was too low. With the discovery of newer, non-steroidal and steroidal, aromatase inhibitors which were orally active and less expensive than formestane, formestane lost popularity.
Currently, formestane (categorized as an anti-estrogenic agent) is prohibited from use in sports in accordance to the regulations of the World Anti-Doping Agency. It is not US FDA approved, and the intramuscular injection form of formestane (Lentaron) which was approved in Europe has been withdrawn.
Formestane (Lentaron) is a type I, steroidal aromatase inhibitor. It is used in the treatment of estrogen-receptor positive breast cancer in post-menopausal women. It is available as an intramuscular depot injection.
Formestane is often used to suppress estrogen production from anabolic steroids or prohormones. It also acts as a prohormone to 4-hydroxytestosteron, an active steroid which displays weak androgenic activity in addition to acting as a mild aromatase inhibitor.
Formestane has poor oral bioavailability and as such is no longer popular as many orally active aromatase inhibitors have been identified.
Formestane is a second generation, irreversible, steroidal aromatase inhibitor. It inhibits the aromatase enzyme responsible for converting androgens to estrogens, thereby preventing estrogen production. Breast cancer may be estrogen sensitive or insensitive. A majority of breast cancers are estrogen sensitive. Estrogen sensitive breast cancer cells depend on estrogen for viability. Thus removal of estrogen from the body can be an effective treatment for hormone sensitive breast cancers. Formestane has been targeted specifically for the treatment of postmenopausal women. Unlike premenopausal women who produce most estrogen in the ovaries, postmenopausal women produce most estrogen in peripheral tissues with the help of the aromatase enzyme. Formestane, an aromatase inhibitor, can thus help to decrease the local production of estrogen by blocking the aromatase enzyme in peripheral tissues (ie. Adispose tissue of the breast) to treat hormone sensitive breast cancer.
Related Products you may need
|Estradiol valerate||Estriol||Hydrocortisone acetate|
|Estradiol benzoate||Nylestriol||Betamethasone 17-valerate|
|Estradiol cypionate||Diethylstilbestrol||Prednisone acetate|
|Algestone acetophenide||Medroxyprogesterone acetate||Clobetasol propionate|
|Lynestrenol||Allylestrenol||Prednisolone phosphate sodium|
|Chlormadinone acetate||Dienogestrel||Fluorometholone Acetate|
|Cyproterone acetate||Drospirenone||Dexamethasone Acetate|
|Megestrol acetate||Pregnenolone||Dexamethasone Sodium Phosphate|
|We also Supply|
|Oral Products||Oxandrolone (Anavar)||Stanozolol (Winstrol)|
|Testosterone||Test Base||17-methyltestostero(methyl testos terone)|
|Test Enanthate||17α-Methyl-Testos terone|
|Test Acetate||Oral turinabol(4-Chlorodehydromethyltestosterone)|
|Test Propionate||Turinabol(Chloroterone Acetate,Clostebol Acetate)|
|Test Undecanoate||Test Cypionate|
|1-Testosterone||Test Sustanon 250|
|Nandrolone Propionate||Nandrolone Cypiontate|
|Nandrolone Decanoate(DECA)||Stanolone (DHT)|
|Trenbolone acetate (Finaplix)|
|Trenbolone enanthate (Parabolan)|
|Trenbolone hexahydrobenzyl Carbonate|
|Methenolone||Drostanolone Propionate (Masteron p)|
|Methenolone Enanthate||Methenolone Acetate|
|Others||Methyl dienedione||2, 4-Dinitrophenol|
|Sex Enhancer||Flibanserin||Acetildenafil (Hongdenafil)|
|Cia lis (Tadalafil)||Yohimbine Hcl|
|Via gra (Silde nafil) Vardenafil (Le vitra)|
|Pain Killer||Benzocaine / Benzocaine hcl||Tetracaine / Tetracaine HCL|
|Procaine / Procaine Hcl||Bupivacaine/ Bupivacaine HCL|
|Lidocaine HCL||Articaine / Articaine hcl|
|Anti-Estrogen||Tamoxifen Citrate (Nolvadex)||Anastrozole (Arimidex)|
|Clomiphene citrate (Clomid)||Letrazole(Femara / For mestane)|
|Pharmaceuticals||Phe nacetin||Raloxifene HCL|
|Dexamethasone Sodium Phosphate||Fura zabol THP|
|Safe Organic Solvents||Gamma-Butyrolactones(GBLsolvents )||Benzyl Alcohol(BA)|
|Grape Seed Oil(GSO)||Poly Ethylene Glycol(PEG)|
|H G H&Peptides||HGH 176-191 2mg/vial||Ipamorelin 2mg/vial|
|MGF PEG MGF||Hexarelin 2mg/vial|
|CJC-1295 / with DAC||Sermorelin 2mg/vial|
|PT-141 10mg/vial||Selank 5mg/vial|
|MT-1 MT-2 10mg/vial||Follistatin 344|
|GHRP-2 5mg/vial & 10mg/vial||Follistatin 315|
|GHRP-6 5mg/vial & 10mg/vial||Eptifibatide|
|Andarine / S4||RAD-140|
|Andarine / GTX-007||SR9011|
1: After our quation ,you will choose to accept or not.
2: If you decide to have a try, choose a payment method to pay for the order.
3: We will sent the package out in 24hours after we received the payment ,then will sent the tracking number with packaging detail to you via mai.
4: We will help track the package until you receive it successful,if accident happen ,we will see the reason to decide re-sent for free or half-price re-sent.
Our Competitive Advantages:
1. Rich experience: we specialize in this field for many years, our steroids have been exported almost over the world. Such as USA, Canada, UK, Brazil, Germany, Russia, Australia, Greece, Poland, Bulgaria, Rumania, Netherlands, Sweden, Ukraine, Latvia, Lithuania, Ireland, Austria, Iran, Turkey, Mexico, Thailand, India, Malaysia, Singapore, other Middle East countries, European countries, American countries and more Areas.
2. Great quality: High purity and Favorable price. Good quality is the first base of our success. All of our products enjoys high purity. Thus, it can make sure your demand. Welcome order the samples, MOQ just 10 grams.
3. Safe and fast delivery: Lots of different discreet safe packing methods, experience in choosing express, 4~7 days to arrive, successful rate 99%.
4. Experiential order and cooperation: Besides raw powders, we offer hormone solution and Recipes. We can teach you or discuss how to make hormone solution on the site. Any discussion and question is welcome!
Packaging & Service:
1. Mass stock, to make sure delivery promptly every day when the payment is done.
2. Having been engaged in this field for years, we have sophisticated and professional logistics department, which can guarantee safe and speedy delivery.
3. Well-trained and disciplined packing team which is professional enough to provide you a safe package. It also avoid a lot of emergency happen during the delivery so that high customs pass is guaranteed. Unique ways to ship 10grams to 20 kilograms powders(or 100ml to 30 Liter liquids) at one time to your destination.
4. Packing pictures and tacking number are provided within 24 hours as soon as receiving the payment. Updated tracking code will be provided every other day just for you can hold a palm of your package.
5. Perfect after-sale service: Any questions or problems happened after receiving the product.
Please feel free to contact us. 24/7 online to solve your various problems!
Contact Person: Eunice
Tel: +86 17683962426