Dianabol is a synthetic anabolic steroid that has been used by bodybuilders, athletes, and fitness enthusiasts for decades. Often abbreviated as "D" or "DB," it was originally developed in the 1950s to help patients with muscle wasting conditions. Over time it gained popularity among those seeking rapid increases in strength, lean mass, and overall performance.
This guide will walk you through everything you need to know about Dianabol – from its chemistry and mechanisms of action to dosing protocols, side‑effects, legal status, and how it stacks against other steroids.
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What Is Dianabol?
1. Chemical Composition
Full name: Methandrostenolone (also called methandienone).
Structure: Derived from testosterone with a methyl group at the C17α position – this makes it orally active.
Form: Usually sold as a free base, often in powder or capsule form.
2. How It Works
Androgenic activity: Binds to androgen receptors (AR) → stimulates protein synthesis.
Anabolic effect: Increases nitrogen retention and muscle cell proliferation.
Oral bioavailability: The C17α methyl group prevents rapid hepatic metabolism, so the drug is absorbed orally.
3. Key Features
Fast onset: Effects visible within days.
High potency: Strong anabolic-to-androgenic ratio (~1.2–1.5).
Short half‑life: ~12–24 h; typically taken 2–3× daily to maintain plasma levels.
2. Pharmacokinetic Profile of a New Oral Anabolic Agent
Property Detail Practical Implications
Absorption Orally administered, lipophilic core → Peak plasma ~1–2 h post‑dose; Cmax ≈ 200 ng/mL (for a 50 mg dose). Fast onset of action. Dose timing critical to avoid troughs before next dose.
Distribution Vd ≈ 12 L/kg → Extensive tissue distribution, including muscle. High protein binding (~90%). Delayed redistribution may sustain effect in muscle; limited free fraction reduces immediate potency.
Metabolism Predominantly CYP3A4‑mediated oxidation → Formation of inactive metabolites (M1). Minor glucuronidation pathway. Potential drug interactions with CYP3A4 inhibitors/inducers. Metabolic stability moderate (~30 h half‑life for parent compound).
Excretion Renal excretion
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