This information is for research and educational purposes only. No medical recommendations. Products are not approved for human use. For health questions, consult a doctor.

Lexicon

Superdrol (Methasterone)

The harsh dry-gainer steroid - fast dry strength, but extremely liver-loading.

1 min read 12 sources

White tablet bottle with a black TPD label on a white podium with a glowing ring, next to it a large blue 3D steroid molecule in front of a bright lab
No clinical trial · not approved

Summary

At a glance

Sources checked on 26 Oct 2026

Anabolic effect in animals
4 -fold

Compared with methyltestosterone, orally in rats, androgenic effect only one fifth10

Liver injuries reviewed
52 cases

Published cases caused by steroids, most often methyldrostanolone (methasterone)2

Dietary supplements with methasterone
62 products

Number of products that claimed to contain methasterone by March 2010, according to the DEA10

On the trial registry
0 trials

No human trial, as of 26 Oct 202611

  • Methasterone is a steroid with a methyl group at position 17 that was never approved as a medicine. It is chemically related to testosterone and acts on the androgen receptor.1210
  • In animals it was four times as anabolic as methyltestosterone when given orally, with one fifth of the androgenic effect. In a cell assay it activated the androgen receptor strongly and for days.106
  • It was mainly sold as an oral dietary supplement. There is no study in humans, only case reports after such products. They mainly describe jaundice from bile congestion, sometimes with kidney damage.1013
  • In a review of 52 cases bilirubin peaked at a median of 28 days after stopping and 43 percent also had kidney injury. Nobody died and nobody needed a new liver.2
  • In the USA methasterone has been controlled as an anabolic steroid since 2012. Everything here is the state of research, not a recommendation.1110
Profile

Updated June 2026

How long does it stay in the body?

Share left after one dose, calculated with a half-life of ~8 hours

Half-life ~8 hours
After 16 hours: 25 %
Hour 8 · 50 %Hour 16 · 25 %Hour 24 · 12.5 %Hour 40 · 3.1 %

Simplified model without an absorption phase, half-life from the TPD lexicon.

Class
Oral anabolic

17a-alkylated, DHT derivative

Use
Oral

1-2x per day

Half-life
about 8 hours
WADA
banned

anabolic

Sizes
20 mg

1 size in the shop

Contents 12 sections
  1. At a glance
  2. What is Superdrol?
  3. How it works
  4. Use and dosing
  5. What the research shows
  6. Research status
  7. Side effects
  8. Storage
  9. Related compounds
  10. FAQ
  11. Glossary
  12. Sources

What is Superdrol?

Superdrol (Methasterone) is an oral, 17a-alkylated DHT derivative - one of the harshest and most potent oral steroids. It delivers fast, dry strength and mass gains without aromatization but is extremely liver-loading and worsens lipids and blood pressure strongly.

This information is for research and educational purposes only. No medical advice.

Comparison

Methasterone and relatives

The same compound in oil and related steroids at the same receptor, as stated in the TPD lexicon. Tap a card to open its entry.

Simplified: methasterone is drostanolone with an extra methyl group at position 17. This group makes it work as a tablet and is seen as the reason for the liver strain. 1012

How it works

Methasterone activates the androgen receptor very strongly and does not aromatize - hence dry gains without water retention. The high potency comes with a correspondingly harsh side effect profile, especially on liver and lipids.

Where it acts

What was observed with methasterone

Tap a point or a card. Liver and kidneys from human case reports, muscle only from the animal model.

  1. Liver

    Jaundice from bile congestion, peak often weeks after stopping1

    Observed in trials
  2. Kidneys

    Kidney injury in 43 percent of the reviewed liver injuries2

    Observed in trials
  3. Muscle (animal model)

    Preserved muscle in castrated rats like testosterone10

    Observed in trials

Known targets10

Compound PubChem CID 237186: one described target, Binding comparable to testosterone, strongly activating in cell assays.

Androgen receptor
Gene
AR
UniProt
P10275
ChEMBL
CHEMBL1871
Action
Binding comparable to testosterone, strongly activating in cell assays
Two blue 3D steroid molecules resting glowing in pockets on translucent striped glass muscle fibres
Methasterone docks onto the androgen receptor. Symbolic image.

Use and dosing

Dosing

Dosing, titration and syringe

Loading the dosing information …

  • Getting started and stepping up, drawn as a staircase
  • Units on the U-100 syringe for every step
  • How long one vial lasts
White tablet bottle with a black TPD label on a bright surface in front of a light blue background, a small pile of white tablets beside it
Tablets to swallow. Symbolic image.

What the research shows

Methasterone was a popular designer steroid of the 2010s. Compound-specific human studies are scarce; the AAS pharmacology (Kicman 2008, Hartgens & Kuipers 2004) classes the properties of oral 17a-alkylated DHT derivatives.

Study results

What the trials measured

Interactive: switch tabs, tap points, show or hide arms. Arms are named relative to each other, no dosing advice.

Anabolic and androgenic compared10

Effect as a multiple of methyltestosterone (= 1), orally in rats

Anabolic effect10
Methyltestosterone (comparison) 1.0-fold
Methasterone 4.0-fold
Androgenic effect10
Methyltestosterone (comparison) 1.0-fold
Methasterone 0.2-fold

Values from the 2012 DEA classification, which cites a 1960 paper (four times as anabolic, one fifth as androgenic). Further tests for the DEA: given orally and under the skin to castrated rats it acted like testosterone and binding to the androgen receptor was comparable.

How certain was the steroid the cause?2

Assessment of 52 published liver injuries using the RUCAM score

Liver injuries from steroids2 Most often methyldrostanolone (methasterone)
Probable 38%
Possible 60%
Unlikely 2%

Case reports, not a trial. The review covers 2 own and 50 published cases with different steroids. Tissue samples showed bile congestion in the liver.

When the liver injury showed2

Median of the 52 cases in days (d)

From start to seeing a doctor2
Median of the cases 56 d
From stopping to peak bilirubin2
Median of the cases 28 d

The injury can still get worse after stopping. In a series of 5 methasterone cases jaundice appeared 2 weeks after stopping and everything had healed about 12 weeks after presentation.

Translucent glass liver surrounded by glowing white and golden ribbons of light in a bright lab
In humans there are only case reports, mainly on the liver. Symbolic image.

Research status

Where the research stands

Methasterone was first made in 1956 and never tested in humans. ClinicalTrials.gov lists not a single trial. As of 26 Oct 2026. 11

  1. Preclinical Animal model (rats, oral and under the skin) and receptor cell assays
  2. Phase 1 no registered trial
  3. Phase 2 no registered trial
  4. Phase 3 no registered trial
  5. Approval not yet
Never approved. In the USA methasterone has been a Schedule III anabolic steroid since 2012.11

So far there is no registered trial in humans. 11

Side effects

  • Liver: 17a-alkylated, extreme - ALT/AST can rise dramatically. Short cycles, liver support mandatory.
  • Lipids: catastrophic HDL lowering.
  • Blood pressure: rises markedly.
  • HPTA suppression - PCT topic.

Tolerability

Severe courses in the case reports

Out of 100 published cases of steroid liver injury, how many had this. Case reports, not a trial, no comparison group.

43 of 100 Cases with liver injury
Event Cases with liver injury
Additional kidney injury2 43%
Death or liver transplant2 0%

Case reports only show what was reported, not a rate among all users. A single case describes IgA nephropathy, an inflammation of the kidney filters, after a muscle building product with methasterone.23

Storage

Store dry and cool, protected from light. Out of reach of children.

Three white tablet bottles and a folded light blue towel on a white shelf
Store dry, cool and dark. Symbolic image.

Related

Related compounds

Same receptors or blends with Superdrol (Methasterone): all in the TPD lexicon.

FAQ

Common questions about Superdrol (Methasterone)

Short answers, each backed by the sources below.

Are there studies in humans?

No. ClinicalTrials.gov lists not a single trial with methasterone. In humans there are only case reports from people who had swallowed dietary supplements containing methasterone. Everything here is the state of research, not a recommendation.111

What do the case reports show about the liver?

In a series of 5 previously healthy people jaundice appeared 2 weeks after stopping, bilirubin peaked another 2 to 3 weeks after presentation and everything had healed about 12 weeks after presentation. In a review of 52 cases people saw a doctor at a median of 56 days after starting and bilirubin peaked 28 days after stopping. Nobody died or needed a new liver.125

And the kidneys?

In the review of 52 liver injuries from steroids 43 percent also had kidney injury. Single case reports on methasterone describe severe bile congestion with kidney failure and IgA nephropathy.243

How does methasterone work?

It binds the androgen receptor about as strongly as testosterone and strongly activates it in cell assays, with the effect lasting several days after exposure. It barely bound oestrogen, progesterone or cortisol receptors. The methyl groups at positions 2 and 17 are reported to hinder conversion to oestrogen.106

Why does methasterone turn up in dietary supplements?

Since 2002 new designer steroids such as methasterone have been sold as dietary supplements. By March 2010 the DEA counted 62 such products. In New York a lab later even found it in vitamin and mineral capsules whose buyers complained of hair loss, fatigue and muscle aches. The US drug agency sent a warning letter about one such product over health damage as early as 2006.7106

What about blood lipids, blood pressure and the body's own hormones?

There are no measurements of this for methasterone itself. Reviews of anabolic steroids in general describe a rise in blood pressure, a drop in HDL cholesterol and suppression of the body's own testosterone production that can last for months after stopping.98

How does it differ from the oil form?

The compound is the same. The case reports and the animal data on the ratio of anabolic to androgenic effect concern the swallowed form. There are no data of its own on the oil form.101

Glossary

Terms explained briefly

Dotted words in the text open these explanations directly.

17-alpha-alkylated
Steroid with a methyl group at position 17. It slows breakdown in the liver but strains the liver.
ALT and AST (transaminases)
Liver values in the blood. If they rise, liver cells are being damaged.
Androgen receptor
Protein inside the cell that testosterone and related steroids bind to. Genes are then read, for example for muscle building.
Aromatization
Conversion of testosterone and related steroids into oestrogen by the enzyme aromatase.
Bile congestion (cholestasis)
Bile does not drain properly from the liver. Jaundice and itching follow.
Bilirubin
Yellow breakdown product of haemoglobin. If it rises a lot, skin and eyes turn yellow.
DHT derivative
Derivative of dihydrotestosterone, a stronger form of testosterone without the double bond in the first ring.
HDL cholesterol
Blood lipid that carries cholesterol away from the vessels. If it drops, the risk of hardened arteries rises.
Hormone axis (HPTA)
Hypothalamus, pituitary and testes together control the body's own testosterone production. Steroids from outside suppress this axis.
Methasterone
Chemical name of the compound, also methyldrostanolone. A synthetic steroid chemically related to testosterone.
RUCAM
Scoring system doctors use to estimate how likely a substance caused a liver injury.
Schedule III
Level of US controlled substance law that includes anabolic steroids. Possession and trade are controlled.

Evidence

Sources

Show all 12 sourcesHide sources 9 Studies2 Trial registry1 Database checked 26 Oct 2026

Studies

  1. Liver injury after methasterone, 5 cases

    Shah et al., Clinical Gastroenterology and Hepatology, 2008

    Checked 26 Oct 2026 via doi.org, Crossref, PubMed
  2. Liver injury from steroids, 2 cases and a review of 50 more

    Abeles et al., BMJ Open Gastroenterology, 2020

    Checked 26 Oct 2026 via doi.org, Crossref, PubMed
  3. Jaundice and IgA nephropathy after a muscle building product with methasterone, case report

    Jasiurkowski et al., American Journal of Gastroenterology, 2006

    Checked 26 Oct 2026 via doi.org, Crossref, PubMed
  4. Severe cholestasis and kidney failure after methasterone, case report

    Nasr und Ahmad, Digestive Diseases and Sciences, 2009

    Checked 26 Oct 2026 via doi.org, Crossref, PubMed
  5. Severe liver injury after a product containing methasterone

    Singh et al., Journal of Clinical Gastroenterology, 2009

    Checked 26 Oct 2026 via doi.org, Crossref, PubMed
  6. Methasterone in dietary supplements, androgen receptor cell assay

    Tran et al., Steroids, 2023

    Checked 26 Oct 2026 via doi.org, Crossref, PubMed
  7. Dietary supplements contaminated and faked with doping substances

    Geyer et al., Journal of Mass Spectrometry, 2008

    Checked 26 Oct 2026 via doi.org, Crossref, PubMed
  8. Review of the pharmacology of anabolic steroids

    Kicman, British Journal of Pharmacology, 2008

    Checked 26 Oct 2026 via doi.org, Crossref, PubMed
  9. Review of effects and side effects of anabolic steroids in athletes

    Hartgens und Kuipers, Sports Medicine, 2004

    Checked 26 Oct 2026 via doi.org, Crossref, PubMed

Trial registry

  1. Classification of methasterone as an anabolic steroid (DEA, with animal and cell tests)

    U.S. Drug Enforcement Administration, Federal Register 77 FR 44456, 2012

    Checked 26 Oct 2026 via Federal Register API, PubMed
  2. Search on ClinicalTrials.gov (no trial)

    ClinicalTrials.gov, U.S. National Library of Medicine

    Checked 26 Oct 2026 via ClinicalTrials.gov API v2

Database

  1. Structure of methasterone in PubChem

    PubChem, NCBI (CID 237186)

    Checked 26 Oct 2026 via PubChem

In the shop

Superdrol (Methasterone) in the catalog

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