Beskrivelse

Masteron P (Drostanolone Propionate) – Royal Pharmaceuticals

Kategori: Injiserbare anabole steroider (kun forskning)
Merkevare: Royal Pharmaceuticals
Innhold: 10 × 1 ml ampoules (≈150 mg drostanolone propionate per ml)
Styrke: 150 mg/ml
Opprinnelse: Storbritannia
Pris: €55
Merknad om bruk: Kun for laboratorie- og analyseforskning. Ikke for administrering til mennesker eller dyr.

🧪 Vitenskapelig oversikt

Drostanolone Propionate (“Masteron P”) is a short–moderate ester dihydrotestosterone (DHT) derivative widely used in androgen research.
As a non-aromatizing androgen, it permits investigation of anabolic signalling without estrogenic interference.
The propionate ester provides relatively rapid release from intramuscular depots, enabling tighter timing control compared with long esters.

Historically, drostanolone was evaluated in oncology research for estrogen-dependent breast cancer due to its anti-estrogenic characteristics. Today, it is predominantly studied in muscle physiology, endocrine pathways, and anti-doping chemistry.

🔬 Viktige forskningsdetaljer

• Sammensatt type: Anabolic-androgenic steroid (AAS), DHT-derived
• Ester: Propionate (short-to-moderate acting)
• Konsentrasjon: 150 mg/ml
• Skjema: Sterile oil-based injectable (IM) for research
• Forskningstemaene omfatter blant annet
  • Lean mass & muscle fibre signalling
  • AR pathway activation & non-aromatizing androgen models
  • Body-composition modulation and water-retention control
  • Endocrine suppression & lipid-effect mapping
  • Anti-doping detection window and metabolite identification
• WADA-status: Fully prohibited at all times (S1 – Anabolic Agents)

🧬 Virkningsmekanisme

Aktivering av androgenreseptor (AR)
Following intramuscular injection, drostanolone propionate is hydrolysed into free drostanolone.
The active steroid binds intracellular ARs, forming a complex that modulates transcription of genes tied to protein synthesis, nitrogen retention, and cellular hypertrophy.

Non-Aromatizing Androgen Profile
Drostanolone cannot convert to estrogen, allowing researchers to study:

• pure androgenic signalling
• androgen–estrogen balance without aromatase involvement
• androgenic anti-estrogenic effects in responsive tissues

Propionate Kinetics
The propionate ester produces a shorter half-life (~2–3 days in typical models), enabling rapid onset and easier experimental timing than long esters like enanthate.

📚 Potensielle forskningsapplikasjoner

• Skeletal muscle anabolism & nitrogen balance studies
• Strength, power-output, and recovery models
• Body-composition research at controlled water-retention conditions
• Endocrine system mapping under strong DHT-derived androgens
• Comparative pharmacology vs. aromatizing or long-ester steroids
• Anti-doping detection method development and metabolite profiling

These outcomes are research observations and do not imply clinical utility.

⚠️ Side Effects & Safety Considerations (Literature-Based)

• Androgenic signals: acne, oily skin, increased body/facial hair, scalp hair loss; virilisation in female models
• Lipid & cardiovascular markers: ↓HDL, ↑LDL, possible blood-pressure elevation and increased hematocrit
• Endokrin undertrykkelse: reduced endogenous testosterone, impaired spermatogenesis
• Hepatic & renal load: liver enzyme elevations and renal stress have been observed in AAS exposure models
• Neuropsychological changes: irritability, mood shifts, aggression in some androgen-exposure studies

Strict PPE, ventilation, documentation, and chemical-handling controls are required.

🛑 Samsvar og juridisk status

• Research-only compound; not approved for human or veterinary use.
• Controlled/prescription-only in many jurisdictions.
• Prohibited in all sports under WADA S1.
• Buyers must ensure compliance with national AAS laws and laboratory regulations.

📊 Tekniske spesifikasjoner

Kun til forskningsbruk - ikke til bruk på mennesker eller dyr.