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Molecular structurePubMed
oralanabolic
Chlorodehydromethyltestosterone
TurinabolT-bolOral Turinabol
186
Anabolic Ratio
53
Androgenic Ratio
0.7d
Half-Life
East German Olympic program compound. Modified Dianabol with a chloro group that prevents aromatization. Steady, lean gains without water retention. Less liver stress than Dianabol but still oral 17α-alkylated.
Mechanism of Action
17α-alkylated for oral bioavailability. Does NOT aromatize (4-chloro modification blocks aromatase). Moderate AR binding. Binds SHBG effectively. More gradual and 'cleaner' gains than Dianabol.
Typical Dosing
140 mg
low / week
280 mg
moderate / week
560 mg
high / week
⚠ Warning Flags
- •17α-alkylated — limit to 6 weeks
- •LDL elevation noted in studies
Effect Profile
Muscle Protein Synthesis5Moderate
Nitrogen Retention5Moderate
Strength Gains5Moderate
Red Blood Cell Production3Low
Fat Loss3Low
Glycogen Storage5Moderate
Recovery Speed5Moderate
Collagen Synthesis3Low
Side Effect Profile
Hormonal Suppression5Moderate
Estrogenic Effects1Minimal
Androgenic Effects3Low
Cardiovascular Strain5Moderate
Liver Stress5Moderate
Insulin Resistance2Minimal
Mood Changes3Low
Prostate Risk3Low
Research Studies
Hormonal doping and androgenization of athletes: a secret program of the German Democratic Republic government
Franke WW, Berendonk B. · 1997
Declassified East German records document systematic turinabol use achieving measurable athletic performance improvement with reportedly low androgenic side effects.