Masterbol 150 mg Injection contains Drostanolone Propionate, an androgenic-anabolic steroid (AAS) originally developed for the treatment of advanced breast cancer in women. It is now more commonly utilized in clinical and research settings for its muscle-enhancing and body-recomposition properties under medical supervision.

Drostanolone Propionate exhibits strong anti-estrogenic activity and moderate anabolic effects, helping to improve muscle hardness, density, and definition. It is administered intramuscularly and is valued for maintaining lean tissue without significant water retention.

Uses of Masterbol 150 mg Injection

• Formerly used in hormone-responsive breast cancer treatment

• Supports muscle recovery and preservation under clinical guidance

• Enhances muscle tone and strength in therapeutic or research environments

• Used for hormonal balance modulation in certain prescribed medical cases

Mechanism of Action

Drostanolone Propionate works by binding to androgen receptors in muscle and bone tissues. This promotes protein synthesis, nitrogen retention, and muscle repair while inhibiting aromatase enzyme activity, which converts testosterone into estrogen. As a result, it reduces estrogenic side effects and enhances a lean, defined muscular appearance.

Benefits of Masterbol 150 mg Injection

• Promotes lean muscle mass and hardness

• Exhibits anti-estrogenic properties (reduces estrogen-related water gain)

• Supports faster recovery and enhanced physical strength

• May aid muscle preservation during calorie-restricted phases

• Provides a stable anabolic effect with minimal fluid retention

Dosage & Administration

• Route: Intramuscular injection only

• Typical Dose: As directed by a qualified healthcare professional

• Frequency: Usually administered every 2–3 days (under supervision)

• Do not self-administer; use only under medical guidance

Side Effects

Possible side effects may include:

• Injection-site irritation

• Changes in libido or mood

• Oily skin or acne

• Temporary hair growth or loss

• Hormonal imbalance if misused

Report any unusual or severe reactions to a physician immediately.

Precautions & Warnings

• For prescription or research use only

• Not recommended for pregnant or breastfeeding women

• Avoid use in patients with prostate, liver, or heart disease

• Periodic liver-function and lipid-profile monitoring advised during use

• Store below 25 °C in a cool, dry place, away from sunlight

Storage

Keep Masterbol 150 mg Injection in its original packaging, protected from light and moisture. Keep out of reach of children.