MAST E 150

Drostanolone Enanthate Injection

Product Name & Packaging
Brand Name: MAST E 150
Generic Name: Drostanolone Enanthate (also referred to as dromostanolone enanthate)
Strength & Packaging: 10 mL multidose vial | 150 mg/mL

Description

MAST E 150 is a concentrated injectable anabolic-androgenic steroid preparation containing drostanolone enanthate, an esterified form of drostanolone. Published references describe drostanolone itself as a potent synthetic androgenic anabolic steroid similar to testosterone, while drostanolone enanthate is cataloged as a prodrug of drostanolone.

Indications

There is no widely standardized modern reference indication established in the sources reviewed for the enanthate presentation specifically. Published clinical references around drostanolone focus mainly on drostanolone propionate, historically used in hormone therapy for recurrent breast cancer in postmenopausal women, with alternative treatments now generally preferred. Based on those references, this enanthate product is best presented as a manufacturer-specific injectable steroid formulation rather than a standard approved therapeutic medicine.

Dosage & Administration

Because this 150 mg/mL enanthate formulation does not have standardized prescribing guidance in the references reviewed, a universal dosage recommendation should not be stated in a medical-reference catalog entry. The safest reference wording is:

“Administer only under the direction of a licensed healthcare professional and in accordance with the manufacturer’s labeling, local regulations, and clinical judgment.”

Injectable drostanolone reference monographs describe the dosage form as an oily solution for injection.

Mechanism of Action

Drostanolone acts through the androgen receptor (AR). General androgen physiology references describe AR signaling as regulating transcription of androgen-responsive genes after receptor binding, while drug references describe drostanolone as a synthetic androgen/anabolic steroid with activity similar to testosterone.

Precautions

Use with caution in settings where androgenic adverse effects are a concern. Clinical references for drostanolone note a high risk of virilization, particularly in women, and support careful professional oversight when considering any drostanolone-based product.

Side Effects

Reported adverse effects associated with drostanolone references include virilization, acne, fluid retention, and hypercalcemia. Because drostanolone is an androgenic anabolic steroid, patients should also be monitored for broader androgen-related adverse effects as clinically appropriate.

Storage

Store in a tight, light-resistant container. Injectable drostanolone monographs describe the solution as a clear, colorless to pale yellow oily liquid; the finished product should be inspected visually before use and stored according to the manufacturer’s labeled conditions.