SIDE-BY-SIDE EVIDENCE

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Select 2–3 profiles from the English Library. Class and grade describe evidence and regulatory context, not comparative effectiveness or suitability for an individual.

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SIDE-BY-SIDE EVIDENCE VIEW

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Evidence comparison · not a treatment ranking

Evidence boundaries, not cross-trial treatment outcomes
Molecule	Metribolone	Methyl-1-testosterone / M1T	Trenbolone base
Research Topic	Clinical / Endocrine Pharmacology	Clinical / Endocrine Pharmacology	Clinical / Endocrine Pharmacology
Pharmacology	Extremely potent synthetic androgen used mainly as a research ligand	Synthetic oral anabolic steroid without an approved human indication	Unesterified synthetic anabolic steroid
PrimeCore Class	Class BInvestigational	Class BInvestigational	Class BInvestigational
Evidence Grade	Grade EPreclinical evidence	Grade EPreclinical evidence	Grade EPreclinical evidence
Evidence boundary	Metribolone is classified here as Extremely potent synthetic androgen used mainly as a research ligand. Research-ligand use and historical studies do not establish a safe therapeutic window or approved medicine. No FDA-approved human medicine was identified; prohibited by WADA at all times. A catalogue name does not establish identity, formulation, quality or authorisation, and this page provides no dosage, mixing, injection or purchasing instructions.	Methyl-1-testosterone / M1T is classified here as Synthetic oral anabolic steroid without an approved human indication. No adequate therapeutic evidence base was identified; marketed bodybuilding claims are not clinical evidence. No FDA-approved human drug was identified; anabolic agents are prohibited by WADA at all times. A catalogue name does not establish identity, formulation, quality or authorisation, and this page provides no dosage, mixing, injection or purchasing instructions.	Trenbolone base is classified here as Unesterified synthetic anabolic steroid. No authorised human product or adequate therapeutic evidence was identified. No FDA-approved human medicine was identified; prohibited by WADA at all times. A catalogue name does not establish identity, formulation, quality or authorisation, and this page provides no dosage, mixing, injection or purchasing instructions.
Unknowns	Insufficient data in the current dataset	Insufficient data in the current dataset	Insufficient data in the current dataset
Limitations	Metribolone molecule or active moiety ≠ ester/salt ≠ formulation ≠ brand ≠ supplier product; biological plausibility or historical use ≠ current approval ≠ safe performance use	Methyl-1-testosterone / M1T molecule or active moiety ≠ ester/salt ≠ formulation ≠ brand ≠ supplier product; biological plausibility or historical use ≠ current approval ≠ safe performance use	Trenbolone base molecule or active moiety ≠ ester/salt ≠ formulation ≠ brand ≠ supplier product; biological plausibility or historical use ≠ current approval ≠ safe performance use
Sources	NIH PubChem · Metribolone identity record FDA · Bodybuilding and steroid-like product safety warning WADA · 2026 Prohibited List	NIH PubChem · Methyl-1-testosterone / M1T identity record FDA · Bodybuilding and steroid-like product safety warning WADA · 2026 Prohibited List	NIH PubChem · Trenbolone base identity record FDA · Bodybuilding and steroid-like product safety warning WADA · 2026 Prohibited List
Read more	Read English overview Complete evidence profile (Thai)	Read English overview Complete evidence profile (Thai)	Read English overview Complete evidence profile (Thai)

This table does not compare doses, cross-trial outcomes or individual suitability. Missing information does not establish an absence of risk.

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Missing fields mean information is unavailable in the current structured dataset, not that a molecule has no risks or uncertainties. English translations retain the original evidence boundaries. Where translation is not yet verified, the original Thai excerpts remain available under an explicit label. Sources retain their original language.

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