Dianabol
Methandrostenolone — the classic mass builder. Rapid muscle and strength gains. The foundation of bodybuilding pharmacology.
Compound

At a glance
At a glance
- Concentration
- 50 × 20mg
- Purity
- USP-equivalent ≥98%
- Route
- Oral
- Storage
- Room temperature, dry, away from light.
Methandrostenolone (17α-methyl-δ¹-testosterone) is arguably the most historically significant anabolic steroid in bodybuilding. Developed by Dr. John Ziegler in collaboration with CIBA Pharmaceuticals in 1958 — in direct response to Soviet athletic dominance — it became the first widely available oral anabolic steroid. Nearly every competitive bodybuilder from the 1960s through the 1980s incorporated Dianabol as a foundational element of their protocol. Its synthesis modified testosterone in two key ways: the addition of a methyl group at the 17-alpha position for oral bioavailability, and a double bond between carbons 1 and 2 to reduce androgenic potency relative to anabolic effect.
Dianabol exerts its effects through potent androgen receptor activation, with a strong emphasis on glycogenolysis (enhanced breakdown and utilization of glycogen for energy), nitrogen retention, and protein synthesis. It aromatizes readily to methylestradiol, contributing to its pronounced intramuscular water retention — this is both its strength (rapid fullness and size) and its limitation (a portion of gained weight is water). The compound also significantly increases free testosterone by lowering SHBG, and promotes a measurable increase in creatine phosphate synthesis, directly supporting strength output.
Dianabol is the canonical mass-builder. It delivers rapid, dramatic increases in muscle size and strength — often noticeable within the first 7–10 days of administration. Researchers consistently report weight gains of 8–15 pounds over a 4–6 week period. The compound produces a full, powerful aesthetic with pronounced muscle bellies. The "Dianabol pump" — the dense, sustained muscular inflation during training — is a hallmark of the compound that no other oral replicates as consistently.
Dianabol is appropriate for novice through advanced researchers whose primary objective is mass accrual. It serves most commonly as a kickstart to a longer injectable cycle (typically 4–6 weeks while waiting for long-ester injectables to reach peak blood levels). The classic stack is Dianabol + Testosterone Enanthate + Deca Durabolin — a combination that has defined bulking protocols for decades.
Methandrostenolone has a half-life of 3–6 hours, necessitating multiple daily doses (typically 2–3 divided doses with meals) to maintain stable blood concentrations. Research dosages range from 20–50 mg daily. Hepatotoxicity is moderate — liver support (NAC 600 mg, TUDCA 250–500 mg) is essential throughout. An aromatase inhibitor (Arimidex or Aromasin) should be kept on hand, as estrogenic side effects — water retention, elevated blood pressure, gynecomastia — are the primary management concern. Cycle length should not exceed 6 weeks for oral-only use.
Dose ranges published in the peptide-research literature vary considerably. Research protocols should be designed by a qualified researcher and use the lowest effective dose consistent with the hypothesis being tested. Half-life determines dosing frequency — shorter half-lives usually require daily dosing, while long-acting analogues tolerate weekly administration.
For compound-specific dose theory, see the half-life dosing math guide and the stacking theory reference.
Independent lab verification
Research disclaimer
For research and laboratory use only. Not for human or veterinary consumption. Novo Pharma sells to qualified researchers of legal age and ships to Canadian addresses only. See disclaimer and terms.
Read the research
Reference articles from the lab covering this compound.
beginner guides
The Complete Bulking Cycle Guide: From First Cycle to Advanced Mass
Complete bulking cycle guide from first cycle to advanced mass stacks. Test, Deca, Dbol, Tren, HGH protocols with nutrition, training, and PCT for every level.
beginner guides
Dianabol Beginner Cycle: What to Expect Week by Week (With PCT)
Complete Dianabol beginner cycle guide with week-by-week results timeline, 30mg dosing protocol, estrogen management, liver support, PCT with Nolvadex, and realistic expectations for Canadian users.
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Best Steroids for Bulking 2026: Mass-Building Compounds Ranked
The definitive 2026 ranking of best steroids for bulking — from Testosterone to Trenbolone. Complete bulking stacks for beginner through advanced with realistic expectations and protocols.
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