Dianabol (Methandrostenolone) — Dosing, Cycles, Half-Life & Side Effects

Dianabol (Methandrostenolone) is an oral anabolic-androgenic steroid with a half-life of 3-6 hours. Classic oral steroid for rapid muscle gains. Primary risks include significant hepatotoxicity, strong HPTA suppression, liver stress typical of 17α-alkylated orals. This page is educational harm-reduction reference compiled from peer-reviewed literature — not medical advice, not an endorsement, not a recommendation to use. Consult a licensed clinician before any decision.

Quick Facts

ClassOrals
Half-life3-6 hours
Detection window45 days
AromatizationYes
HepatotoxicityHigh
Suppression10/10
17α-alkylatedYes
Administrationoral

Typical Dosing Ranges

Common dose range: 20-50mg/day

Cycle length: 4-6 weeks

Time to steady state: ~1 days

Dose ranges are compiled from published pharmacokinetic studies and community-reported usage. Where a value is community-reported rather than clinically studied, this page and its structured data flag it. Lower end of any range is always the safer starting point.

Stacking Considerations

PCT Requirements

  • This compound causes clinically meaningful HPTA suppression. Post-cycle therapy is recommended.
  • Depot clearance estimate: ~1 days post-last-dose before SERM start (5 × apparent depot half-life of 6h).
  • Never stack two SERMs. Extend a single SERM (tamoxifen OR enclomiphene/clomiphene) rather than combining.
  • Use the cycle planner to generate a full protocol based on your complete stack, not this compound alone.

Side Effect Profile

  • Liver toxic
  • Water retention
  • Estrogen conversion
  • High suppression

Known Interactions

  • Two oral steroids with significant hepatotoxicity. Combined liver stress is multiplicative.

    Recommendation: Never combine multiple 17-alpha alkylated orals. Choose one or use with injectable.

    Monitor: AST, ALT, GGT, Bilirubin

  • Two of the most hepatotoxic oral steroids. Extreme liver damage risk.

    Recommendation: Never combine. Both individually require careful liver monitoring.

    Monitor: Full liver panel weekly

Monitoring (Bloodwork & Vitals)

  • Comprehensive metabolic panel (baseline, mid-cycle, post-cycle)
  • Lipid panel (total cholesterol, HDL, LDL, triglycerides)
  • CBC (hemoglobin, hematocrit — watch for erythrocytosis)
  • Sex-hormone panel (Total T, Free T, Estradiol sensitive, SHBG, LH, FSH)
  • Liver enzymes (ALT, AST, GGT) every 2–4 weeks on oral 17αα cycles
  • Blood pressure (weekly self-check; flag systolic >140 or diastolic >90)

Baseline bloodwork is recommended before any cycle. Discontinue if liver enzymes exceed 3× upper limit of normal or if hematocrit exceeds 54%.

Frequently Asked Questions

What is the half-life of Dianabol (Methandrostenolone)?

Dianabol (Methandrostenolone) has a half-life of approximately 3-6 hours. Clearance estimate: 6h � 5 = 30h = 1.25 days. This figure is used to determine injection frequency (for esters) and post-cycle clearance timing.

What is the typical dose range for Dianabol (Methandrostenolone)?

Commonly reported ranges for Dianabol (Methandrostenolone): 20-50mg/day. Cycle length: 4-6 weeks. These are compiled from published studies and community-reported usage — individual response varies and lower end is always preferred.

Does Dianabol (Methandrostenolone) suppress natural testosterone?

Dianabol (Methandrostenolone) causes severe suppression of the HPTA axis (score 10/10). Post-cycle therapy (PCT) is recommended after use.

Is Dianabol (Methandrostenolone) liver toxic?

Hepatotoxicity rating: High. Dianabol (Methandrostenolone) is 17α-alkylated, which bypasses first-pass liver metabolism and increases hepatic stress. Oral 17αα cycles should be capped at 6 weeks and paired with liver monitoring (ALT/AST every 2–4 weeks).

Does Dianabol (Methandrostenolone) aromatize to estrogen?

Aromatization profile: Yes. An aromatase inhibitor may be warranted if estrogen-related side effects appear — but AI use should be symptom-driven, not prophylactic, to avoid crashing E2.

What is Dianabol (Methandrostenolone) typically used for?

Dianabol (Methandrostenolone) is commonly used for: Bulking, Strength gains, Intermediate users. Intended-use context does not imply safety — every use case carries the same underlying pharmacological risks.

Citations

  1. Hartgens F, Kuipers H. 2004. Sports Med — Half-life 3-6 hours for methandrostenolone
  2. Liu et al.. 2025. Substance Use & Misuse — AAS meta-analysis: SBP +12.43 mmHg (95% CI: 9.59-15.26), LDL-C +9.12 mg/dL (95% CI: 6.75-11.49)
  3. Holma P, Adlercreutz H. 1976. Acta Endocrinol (Copenh) — Primary-source HPTA suppression evidence: 15 mg/day metandienon × 2 months in 16 trained athletes — plasma testosterone fell 69% (29.4 → 9.1 nmol/L), LH and FSH both fell ~50% (p<0.001 and p<0.01 respectively). Critically, this is a SUB-PED dose; standard cycle doses (30-50 mg/day) drive functionally maximal HPTA shutdown. Supports suppressionScore 10/10 at cycle-relevant exposure.
  4. Hervey GR, Hutchinson I, Knibbs AV et al.. 1976. Lancet — Double-blind crossover RCT: 100 mg/day methandienone × 6 weeks in 11 athletes; plasma testosterone decreased significantly; plasma cortisol increased. Confirms dose-dependent HPTA suppression at typical PED-cycle doses.
  5. Hartgens F, Kuipers H. Effects of androgenic-anabolic steroids in athletes. Sports Med 2004

Disclaimer

StackItSmart is an independent harm-reduction reference. The content above is compiled from peer-reviewed literature and is not medical advice, not an endorsement, and not a recommendation to use Dianabol (Methandrostenolone). Performance-enhancing compounds carry legal, endocrine, cardiovascular, and hepatic risks. Consult a licensed clinician before any decision. StackItSmart does not provide sourcing, procurement, or dosing prescriptions.

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