Mastelad 100 mg/ml (Drostanolone Propionate) 10ml vial

Description

Drostanolone, commonly known as Masteron, exhibits high androgenic and moderate anabolic effects. Unlike many steroids, it does not aromatize in the body and acts as a mild aromatase inhibitor. As a derivative of dihydrotestosterone (DHT), it shares similar biological actions. Although Drostanolone has been used medically to treat breast cancer in women, its potential for causing virilization has limited its current usage. The lack of aromatase action prevents its conversion to estradiol.

Drostanolone shows a strong affinity for androgen receptors in muscles, the prostate, and the scalp, which can lead to side effects such as baldness, prostate enlargement, and body hair growth. As a DHT derivative, it indirectly inhibits estradiol activity, displaying antiestrogenic properties. Notably, athletes on cutting diets value Drostanolone for its ability to counteract the strength and psychological decline often caused by carbohydrate deficiency.

In bodybuilding, Drostanolone is favored for its ability to enhance muscle definition without causing fluid retention. Its mild diuretic effect helps achieve a ripped, athletic appearance, while its fat-burning properties can reduce fat mass by 5-10%. However, its anabolic index is lower compared to testosterone, which increases the risk of androgenic side effects such as aggression, acne, baldness, prostate hypertrophy, and virilization in women.

Dosage

The optimal effect of Drostanolone is achieved with a weekly dosage ranging from 300-500 mg. It is sometimes used in hormone replacement therapy to reduce sex hormone-binding globulin (SHBG) and increase free testosterone levels. Compared to other SHBG-reducing DHT derivatives like stanozolol, Drostanolone is considered more challenging to detect in doping control. Typical dosages range from 75-200 mg per week, depending on the intended purpose. Common dosage ranges are:

- Beginner: 50 mg every other day (EOD)
- Average: 100 mg EOD
- High: 50+ mg every day (ED)

Effects

- Increased strength and lean muscle mass
- Improved recovery
- Enhanced fat burning
- Absence of aromatization

Side Effects

- Suppression of endogenous testosterone production
- Reduced fertility
- Elevated hematocrit levels
- Increased blood pressure
- Acne
- Baldness
- Adverse effects on lipid profile

Profile

- Half-Life: 20 hours
- Injection Frequency: Every 1-2 days
- Formulation**: Oily solution for intramuscular injection

Contraindications

- Pregnancy
- Known or suspected prostate or breast carcinoma
- Breastfeeding
- Hypersensitivity to the active substance or any excipients
- Elevated blood calcium levels

Storage Instructions

- Keep out of reach of children
- Store in a cool, dry place away from direct sunlight
- Store at room temperature
- Do not use after the expiry date