Dianabol
Methandrostenolone · Dbol · Methandienone
Classic oral mass builder; short half-life, strong aromatization. Simple model — peak calibrated.
Key takeaways
- The original oral mass builder (1958); a 17-alpha-alkylated testosterone derivative.
- ~5.25-hour half-life; daily doses are split 2–3× to smooth peaks.
- Aromatizes strongly; water retention, blood pressure, and gynecomastia are the central side effects.
- Moderate hepatotoxicity; liver enzymes and lipids belong in the monitoring set.
Overview
What it is
Dianabol (methandrostenolone, methandienone) is the original oral anabolic steroid, a 17-alpha-alkylated testosterone derivative Ciba introduced in 1958. It drives rapid nitrogen retention and glycogen storage, which made it the classic kick-start mass builder. It aromatizes strongly, so the gains come with water.
Pharmacokinetics
The ~5.25-hour half-life means serum levels peak and fall within a day, so community protocols split the daily dose into 2–3 administrations. Oral bioavailability is high (~95%) thanks to the 17-alpha-methyl group, which is also what makes it hepatotoxic.
Harm reduction
Liver toxicity is rated moderate; the bigger day-to-day issues are estradiol-driven water retention, blood pressure, and gynecomastia. Liver enzymes, lipids, and blood pressure form the monitoring set, and HPTA suppression is rapid and complete.
Reported dosing protocols
Protocols reported in research literature and clinic/community use — informational context, not a dosing recommendation.
| Use case | Dose | Route | Frequency | Duration |
|---|---|---|---|---|
| Clinical (historical) | 5–10 mg daily | Oral | 1× daily | Weeks–months |
| Mass / kick-start (community) | 15–50 mg daily | Oral | 2–3× daily (split) | 4–6 weeks |
Pharmacokinetic summary
- Model tier
- Simple (t½ + F, Tmax estimated)
- Half-life
- 5.3 hours
- Cmax
- 63.1 ng/dL
- Bioavailability
- 95%
- Typical dose
- 15–50 mg
Harm reduction
- Aromatizes
- Yes
- DHT derivative
- No
- Hepatotoxicity
- moderate
- Injection frequency
- Oral, 2–3×/day
Frequently asked questions
Why is Dianabol used to kick-start cycles?
Its short half-life and high oral bioavailability produce measurable blood levels and effects within days, while long-ester injectables take weeks to reach steady state. Community protocols run it for the first 4–6 weeks, then drop it once the injectable has saturated.
Does Dianabol need estrogen management?
It aromatizes strongly to estradiol, so water retention, gynecomastia, and blood pressure are common at community doses. How that's handled depends on individual response and bloodwork rather than a fixed rule.
Is Dianabol still made pharmaceutically?
Ciba withdrew the original product decades ago, and it has no current approved medical use in most countries. What circulates today is underground-lab or foreign generic product, so dose accuracy and contamination are real considerations.
References
- Bionity encyclopedia — Cmax calibrated to ng/dL serum peak.
- Methandrostenolone overview (Bionity encyclopedia) — Background and PK reference; primary human PK literature is old and sparse.
Related articles
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Halotestin
Extremely hepatotoxic oral; pure strength/aggression, minimal hypertrophy.
Anadrol
Potent oral mass builder; high water retention and significant hepatotoxicity.
Turinabol
Oral cross between Dbol and Clostebol; low water retention, moderate liver toxicity. Peak calibrated.
Protocols featuring Dianabol
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