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Turinabol

Tbol / chlorodehydromethyltestosterone · Anabolic steroid (oral)

Research reference only. Pepdex does not sell, supply or track this compound, and nothing here is guidance to use it — this page exists so the evidence and the risks are visible.

What it is

The East German state-doping steroid — an oral chlorinated testosterone derivative administered systematically to athletes in the 1970s-80s, chosen partly because it evaded the era's drug testing.

What human evidence shows

The East German program's archives document widespread administration, performance effect, and systematic harm — but that was state doping, not controlled clinical research. No legitimate clinical development exists since.

Risks

17-alpha-alkylated liver load, lipid damage that community bloodwork consistently suggests is worse than its mild reputation implies, HPG-axis suppression, and — per the East German records — long-term harms including liver disease and, in women, virilization that did not reverse. Modern long-term metabolite testing detects it months after exposure.

Stacking interactions

Documented interactions with other things people research. A compound not listed here does not mean the combination is safe — only that no specific interaction is on file.

CautionWinstrol

Each of these oral steroids has independently been associated with liver injury. Pair-specific safety data are lacking, and concurrent exposure may increase hepatic risk.

CautionAnavar

Each of these oral steroids has independently been associated with liver injury. Pair-specific safety data are lacking, and concurrent exposure may increase hepatic risk.

CautionAnadrol

Each of these oral steroids has independently been associated with liver injury. Pair-specific safety data are lacking, and concurrent exposure may increase hepatic risk.

CautionDianabol

Each of these oral steroids has independently been associated with liver injury. Pair-specific safety data are lacking, and concurrent exposure may increase hepatic risk.

CautionSuperdrol

Each of these oral steroids has independently been associated with liver injury. Pair-specific safety data are lacking, and concurrent exposure may increase hepatic risk.

CautionHalotestin

Each of these oral steroids has independently been associated with liver injury. Pair-specific safety data are lacking, and concurrent exposure may increase hepatic risk.

CautionAnabolic steroids

Each of these oral steroids has independently been associated with liver injury. Pair-specific safety data are lacking, and concurrent exposure may increase hepatic risk.

Legal status

US: Schedule III anabolic steroid under the CSA; never an approved US drug.

Evidence base

D92 research papers
emerging literature

Studied, but no human trial report found. A real literature that is preclinical as far as these counts can see.

phase 3/4
0
randomised
0
reviews
0
human trials
0

Counts are of published papers, not distinct trials, and measure how much research exists — not whether this works or is safe for you.

Research (12)

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Where next

Every compound in the catalogThe full non-peptide index, with evidence grades.→The peptide indexInjectable peptides, half-lives and what trials used.→Spotting a scam vendorRed flags, COA checks and what traceability looks like.→