UPA Mast P 100mg/ml

UPA Mast P 100mg/ml is an oil-based injectable anabolic androgenic steroid containing Drostanolone Propionate, a synthetic derivative of dihydrotestosterone (DHT).

Each 10ml vial contains a stated concentration of 100mg/ml, providing a total of 1,000mg of Drostanolone Propionate per vial.

Drostanolone is recognised for its androgenic activity and non-aromatising properties. The propionate ester provides a shorter-acting release profile compared with Drostanolone Enanthate.

Drostanolone Propionate has a history of limited medical use in treating certain forms of breast cancer.

What UPA Mast P 100 Is Used For

Drostanolone Propionate is associated with anabolic and androgenic activity. Its pharmacological characteristics include:

• Muscle Tissue Maintenance: Androgen receptor activation influences biological processes involved in skeletal muscle development and maintenance.
• Protein Metabolism: Anabolic androgenic steroids affect protein synthesis, protein turnover and nitrogen balance.
• Body Composition: Drostanolone has been used outside medical settings for physique-related purposes, although reliable clinical evidence supporting these applications is lacking.
• Non-Aromatising Properties: As a DHT-derived compound, drostanolone does not directly convert into oestrogen.
• Androgenic Activity: Interacts with androgen receptors, influencing androgen-dependent tissues and biological functions.
• Historical Medical Applications: Drostanolone Propionate was previously used in certain breast cancer treatments.
• Shorter-Acting Ester: The propionate ester provides a faster release profile than longer-acting drostanolone esters.

How UPA Mast P 100 Works

Drostanolone Propionate acts primarily through androgen receptor activation, influencing several androgen-dependent biological processes.

• Androgen Receptor Binding: Drostanolone interacts with androgen receptors, activating pathways involved in tissue development and protein metabolism.
• Protein Metabolism: Androgen signalling influences muscle protein turnover and tissue maintenance.
• Nitrogen Balance: Anabolic androgenic steroids can influence nitrogen retention within skeletal muscle tissue.
• DHT-Derived Structure: Drostanolone is structurally related to dihydrotestosterone and does not undergo direct aromatisation into oestrogen.
• Propionate Ester: The shorter ester allows drostanolone to be released more rapidly following intramuscular administration.
• Hormonal Suppression: External androgen exposure can suppress natural testosterone production through the hypothalamic-pituitary-gonadal axis.

Drostanolone Propionate and Drostanolone Enanthate contain the same underlying active steroid. Their primary difference is the ester structure, which affects the rate of release and duration of activity.

Possible Side Effects

Drostanolone Propionate may cause androgenic, hormonal, cardiovascular and reproductive adverse effects.

Common or Recognised Side Effects:

• Acne and oily skin
• Hair loss (male-pattern baldness)
• Natural testosterone suppression
• Changes in libido
• Erectile dysfunction
• Reduced fertility
• Testicular atrophy
• Unfavourable cholesterol changes
• Increased blood pressure
• Mood changes and irritability
• Increased aggression
• Injection-site pain or irritation
• Virilisation in women
• Menstrual irregularities