Strength: 200 mg/ml
Molecular Formula: C27H44O3
Molecular Weight: 416.64 g/mol
Active Ingredient: Drostanolone Enanthate
CAS number: 472-61-145
Dosage Form: Injectable, Oil Base Sterile Solution

Masteron E 200 is a synthetic derivative of dihydrotestosterone, producing an anabolic effect and promoting protein synthesis as well as creating positive nitrogen balance in humans. Since it is a derivative of dihydrotestosterone, drostanolone does not aromatize to estrogens. Masteron E 200 has significant anabolic and androgenic properties promoting an increase in Te strength and growth of muscle tissue while acting as an estrogen antagonist. Long acting enanthate ester produces rapid increases in serum Drostanolone levels with a sustained duration of 5-8 days.



Drostanolone attaches to androgen receptors; increasing
nitrogen retention and protein synthesis. Drostanolone acts on DHT modulated pathways as well, Drostanolone is a potent estrogen antagonist and does not aromatize to estrogen, limiting expression of side effects often linked to estrogen such as water retention, gynecomastia, and some types of high blood pressure. Drostanolone undergoes hepatic metabolism with a half- life of 5-8 days after separation of the ester.


To rapidly restore muscle tissue atrophied during recovery from a traumatic injury. To offset muscle catabolism in patients with a wasting syndrome.DA To treat certain types of anemia which are non-responsive to first line agents. Estrogen antagonist in treatment of breast cancer.