Oral Steroid / Oral

4-Chlorodehydromethyltestosterone (Turinabol / Tbol)

Modified Dianabol derivative. Does not aromatise. Associated with lean, dry gains without water retention. Long detection window in testing. For research reference only — consult a physician before use.

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Educational reference only. This page does not diagnose, prescribe, or replace care from a licensed professional. Laws, availability, and clinical appropriateness vary by location.

Reference dose40–80 mg/day. Maximum 8 weeks.

Half-life16 hours

Risk flaghigh

Regulatory noteResearch-only flag

Side effects and watch-outs

Liver toxicity (less than Dianabol but significant — LFTs required)
HDL suppression
LDL elevation
Cardiovascular stress
HPTA suppression
Hair loss
Acne
Mild virilisation in women at higher doses
⚠️ Very long detection time — significant for competitive athletes