Turinabol
Oral Turinabol · Tbol · OT · 4-chlorodehydromethyltestosterone · 4-CDMT · DHCMT · chlorodehydromethyltestosterone
Last updated
At a glance
54
Testosterone = 100
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Testosterone = 100
Overview
Turinabol earned its reputation the hard way — as the oral that built a generation of East German Olympians and then resurfaced decades later in the 2008/2012 retest scandals because its metabolites stay detectable for months. Strip away the doping-program mythology and what you have is a genuinely useful compound: a non-aromatizing, 17α-alkylated oral that delivers dry strength and lean tissue without the face bloat of dbol, the lipid carnage of anadrol, or the counterfeit roulette of modern anavar.
Physique-focused users reach for it for three things. First, a clean kickstart to a testosterone cycle — 40–60 mg/day for the first six weeks while the injectable ester saturates, with every pound gained staying visible because nothing aromatizes. Second, recomp on a TRT base, where 30–40 mg/day sharpens conditioning in a deficit without the estrogen whiplash that makes wet orals miserable to cut on. Third, a strength block for lifters who want CNS-mediated gains and SHBG suppression without drifting up a weight class. It is not a mass monster — expect 4–8 lb of real tissue over six weeks in most males, not fifteen — but what it builds, it keeps.
"Most users report the sweet spot for recomp or lean mass is 40–60 mg/day; it's less wet than dbol and has a lower side effect profile than anadrol — but you still need to watch lipids and liver enzymes." — r/steroids community thread, 2022
The rest of this page lays out what you actually need to run it well: the dose ladder from beginner to advanced (including female protocols), how to structure a 6–8 week cycle solo or stacked with test, the ~16 h half-life and AM/PM split that most users settle on, the bloodwork cadence and liver support that keep you out of trouble, a proper SERM-based PCT, and the specific reasons turinabol is a hard no for anyone in a tested federation.
How Turinabol works
Turinabol is a synthetic oral anabolic steroid — structurally a hybrid of methandrostenolone (Dianabol) and clostebol (4-chlorotestosterone) — engineered to deliver clean androgen receptor activation without estrogenic water or significant DHT-driven androgenic load. Three structural features define how it behaves in the body: a 1,2-double bond that reduces 5α-reductase affinity, a 4-chloro substitution that blocks aromatase conversion to estrogen, and a 17α-methyl group that allows oral bioavailability by resisting hepatic first-pass oxidation. The practical result is a "dry" strength-and-recomp oral with a lower side effect ceiling than dbol or anadrol — but also a lower scale-weight ceiling.
Androgen Receptor Activation Without Aromatization#
Turinabol binds and activates the androgen receptor in skeletal muscle, driving the standard cascade: nuclear translocation, transcription of anabolic genes, increased muscle protein synthesis, and modest nitrogen retention. Its published anabolic:androgenic ratio from the classical Hershberger bioassay work is roughly 54:6, meaning it is strongly dissociated in favor of anabolic activity relative to androgenic activity (testosterone is 100:100 by reference).
Because the 4-chloro group blocks aromatase, turinabol contributes zero estrogenic signaling — no gyno risk from the parent compound, no water retention, no estrogen-mediated anabolic synergy. This is why gram-for-gram it feels "underpowered" next to dianabol despite a higher AR-level anabolic rating: estrogen is doing a lot of the heavy lifting on wet orals, and turinabol simply doesn't have that lever. What you see on the scale is largely real tissue.
SHBG Suppression and Free Testosterone Synergy#
One of turinabol's most useful mechanisms when stacked with a testosterone base is potent SHBG suppression. Sex hormone-binding globulin sequesters testosterone and estradiol in circulation; when SHBG drops, free (bioavailable) testosterone rises at the same total T level.
"The elimination half-life of Oral-Turinabol in humans was determined to be approximately 16 hours after intravenous and oral administration, supporting a once daily dosing regimen." — Schänzer W, Horning S, Donike M., Dtsch Z Sportmed, 1991
This is the mechanistic basis for the classic "test + Tbol kickstart" — the oral amplifies the effective androgen signal from the injectable ester during the first 4–6 weeks while the test base saturates. Lifters running 125–200 mg/week of testosterone alongside 40–60 mg of Tbol frequently report a free-T rise disproportionate to what either compound would produce alone.
HPTA Suppression via Negative Feedback#
As an AR agonist, turinabol suppresses the hypothalamic-pituitary-gonadal axis through standard negative feedback at the hypothalamus and pituitary — LH and FSH drop, endogenous testosterone production falls. Despite a long-standing community reputation as "mild," suppression at bodybuilding doses (40 mg+) is clinically meaningful and not optional to plan for. This is why turinabol is run either on top of a testosterone base (so the exogenous T handles what the shutdown removes) or with a full SERM-based PCT afterwards. Running it solo without PCT is the most common rookie mistake on this compound.
Hepatic First-Pass and 17α-Alkylation#
The 17α-methyl group that makes turinabol orally active also makes it hepatotoxic. The liver processes every milligram on its way into circulation, driving:
- ALT/AST elevation — expect it at any dose above ~30 mg/day
- Lipid disruption — aggressive HDL suppression, moderate LDL rise, driven by hepatic effects on lipoprotein metabolism
- Cholestatic stress at higher doses or extended cycles
This is the main reason cycles are capped at 6–8 weeks and why TUDCA (500–1000 mg/day) is standard support. The lipid hit is arguably the quiet long-term cost: chronic HDL suppression across repeated cycles is what drives cardiovascular risk in long-term oral users, more than the transient liver enzyme bumps that dominate forum discussion.
Extensive Hepatic Metabolism and the Long-Term Metabolite Problem#
Turinabol is metabolized into a wide array of hydroxylated and reduced derivatives, and one of these — the DHCMT long-term metabolite (M3) — is the reason this compound is infamous in anti-doping. It remains detectable in urine long after the parent drug and any performance benefit have cleared.
"The long-term metabolite M3 enables detection of DHCMT administration in urine samples for more than 40-50 days after intake, which is substantially longer than the period of performance enhancement." — Sobolevsky T, Rodchenkov G, et al., Drug Testing and Analysis, 2021
"The identification of novel long-term metabolites allows for an extended retrospective detection window of DHCMT misuse in anti-doping analysis." — Parr MK, Fusshöller G, Schlörer N, et al., Rapid Commun Mass Spectrom, 2011
For untested recreational lifters this is irrelevant. For anyone competing in a WADA-tested federation, it's disqualifying — the metabolite is what caught dozens of athletes in the 2008 Beijing and 2012 London retests years after the fact. Treat turinabol as a no-go for any tested context with at least a 6-month runway, and understand that some users clear M3 for considerably longer than the cited 45-day window.
Protocol
| Level | Dose | Frequency | Notes |
|---|---|---|---|
| Low | 30–40 mg | Twice daily | Documented entry-level range |
| Mid | 50–60 mg | Twice daily | Most commonly studied range |
| High | 70–100 mg | Twice daily | Split AM/PM at 40 mg+ to smooth peaks. Once-daily is viable given the ~16 h half-life but most users find split dosing reduces stomach discomfort and lipid stress. |
Cycle length & outcomes
Documented cycle
4–8 weeks
Plateau after
8 wks
Cycle Structure#
Turinabol is a short-to-medium oral run — 4–8 weeks is the usable window, with 6 weeks being the community default. Past 8 weeks the liver and lipid cost curves up sharply while the anabolic signal flattens, and the AR desensitization that limits all orals starts to bite. No loading phase, no taper: you start at your target dose on day 1 and stop clean on the last day.
With a ~16 hour half-life, once-daily dosing gives workable steady state, but most users split AM/PM at 40 mg and above to smooth the peak and reduce GI / lipid stress.
"The elimination half-life of Oral-Turinabol in humans was determined to be approximately 16 hours after intravenous and oral administration, supporting a once daily dosing regimen." — Schänzer et al., 1991
Dose × Goal × Duration#
| Goal | Cycle Length | Daily Dose | Context |
|---|---|---|---|
| First cycle (on test base) | 6 weeks | 30–40 mg | Test-E 300–400 mg/wk base; learn how your lipids and LFTs respond before pushing dose |
| Lean recomp (on TRT) | 6–8 weeks | 30–40 mg | Deficit or maintenance kcal; turinabol for hardness and strength preservation |
| Kickstart (front-loading a test cycle) | Weeks 1–6 of 12–16 | 40–60 mg | Covers the ester saturation gap on long-ester test |
| Lean bulk (intermediate) | 6–8 weeks | 50–60 mg | Sweet spot for most males — visible tissue, no water |
| Strength block | 4–6 weeks | 50–75 mg | SHBG suppression + AR activation; time to a peaking phase |
| Advanced / diminishing returns | 6 weeks max | 70–100 mg | Returns curve flat, sides don't — most experienced users cap at 80 mg |
| Female lean cycle | 4–6 weeks | 5–10 mg | Do not extend past 6 weeks; discontinue at first virilization sign |
"Documented athlete protocols ranged between 5 and 15 mg/day for female athletes and up to 40 mg/day for males, often administered over multi-year periodized cycles." — Franke & Berendonk, 1997
The East German clinical doses are notably lower than modern community doses — partly because their raw was pharmaceutical-grade and partly because recreational users are chasing physique goals rather than sport-specific periodization. UGL turinabol is also one of the more consistently underdosed orals on the market, so a "40 mg" tab may be 20–25 mg of real compound. If results feel flat, vendor QC is the first suspect.
Onset & Timing#
- Days 3–7: noticeable pump density, better intra-workout endurance, slight strength uptick
- Weeks 2–3: strength curves pick up sharply, lifts moving 5–10% in the compound movements
- Weeks 3–6: tissue accrual becomes visible — dry, hard look rather than scale explosion
- Weeks 6–8: diminishing returns; this is your stop line
Expect roughly 4–8 lb of real tissue over a 6-week male cycle at 50 mg on a test base. Anyone promising more is either underdosed and calling water dbol-gains, or lying about the compound.
"Most users report the sweet spot for recomp or lean mass is 40–60 mg/day; it's less wet than dbol and has a lower side effect profile than anadrol — but you still need to watch lipids and liver enzymes." — r/steroids community, 2022
Bloodwork Cadence#
Non-negotiable on any serious turinabol run:
| Timepoint | Panel |
|---|---|
| Baseline (pre-cycle) | CBC, CMP (ALT/AST, eGFR), full lipid panel, total + free T, E2, LH/FSH, SHBG |
| Week 4 | ALT/AST, lipids (focus HDL), eGFR, BP log |
| Post-cycle (2–3 weeks after last tab) | Full panel again — liver should normalize fast; lipids and HPTA are the lagging indicators |
HDL rarely recovers fully between back-to-back cycles, which is the quiet cost that compounds over years. If HDL is trending into the teens at week 4, that's the cycle-ending signal, not something to push through.
Tapering & PCT Positioning#
No taper — 17α-alkylated orals are stopped cold. What matters is what sits around the turinabol window:
- On a test base: let the test ester clear (long-ester: wait 2–3 weeks after last test pin), then run nolvadex 40/40/20/20
- On TRT / blast-and-cruise: return to cruise dose immediately after the last tab; no PCT required
- Solo (not recommended): begin nolvadex 40/40/20/20 three days after the last dose given the 16 h half-life
TUDCA 500–1000 mg/day throughout the cycle and for 2 weeks after. This is standard practice for any oral 17-aa run and should be treated as part of the protocol, not optional.
Detection Window#
If you compete in a tested federation, turinabol is not a compound you can time around. The long-term M3 metabolite makes it one of the most catchable AAS on the WADA code.
"The long-term metabolite M3 enables detection of DHCMT administration in urine samples for more than 40-50 days after intake, which is substantially longer than the period of performance enhancement." — Sobolevsky & Rodchenkov, 2021
Assume 6 months minimum clearance before any tested event, and longer in outlier excreters. This is what the Beijing and London retests caught.
Body Transformation Preview
Lean Mass Gain
5.7 lbs
4.2–7.1 lbs range
Fat Loss
0.0 lbs
0.0–0.0 lbs range
Lean Gain by Week
Risks & mistakes
Common (most users)#
- Elevated liver enzymes (ALT/AST) — expected on any oral c17-aa. Run TUDCA 500–1000 mg/day on-cycle, avoid alcohol entirely, skip NSAIDs where possible, and pull week-4 bloods. Mild 2–3x ULN elevations are normal; anything past that warrants a dose cut or early termination.
- HDL suppression / LDL rise — the defining oral-AAS cost. Mitigate with low-saturated-fat intake, daily cardio (30+ min, zone 2), citrus bergamot 1000 mg/day, and omega-3 3–4 g/day. If HDL drops below 25 mg/dL at week 4, cut the dose or end early.
- Mild blood pressure rise — less than dbol/anadrol (no water retention) but still real via lipid and endothelial effects. Home cuff 2–3x/week; telmisartan 20–40 mg is the community-standard fix if BP creeps past 135/85.
- Suppressed natural testosterone — guaranteed, even solo. This is why a TRT-dose test base (125–200 mg/wk) is the default rather than running turinabol alone.
- Mild stomach discomfort — splitting the dose AM/PM with food handles it.
- Lethargy at higher doses — some users feel flat on 60 mg+. Usually reflects lipid/BP stress; back off 10–20 mg and it resolves.
Uncommon (dose-dependent or individual)#
- Accelerated hair shedding in genetically predisposed users — turinabol is not meaningfully 5α-reduced, so finasteride won't help here. The relevant tools are topical AR antagonists (RU58841, pyrilutamide) and a solid minoxidil/ketoconazole base. If shedding starts, it's an AR-level problem, not a DHT problem.
- Acne — mild compared to test or tren, but possible. Standard topical routine (adapalene + benzoyl peroxide) handles most cases.
- Lipid profile that doesn't fully recover between cycles — the quiet cost of repeat orals. If baseline HDL is trending down year-over-year, extend time off between cycles and reconsider oral frequency.
- eGFR shifts — usually creatinine-driven from increased muscle mass rather than true renal stress, but check cystatin C if you want a cleaner read.
- Insomnia / irritability — dose-dependent, often resolves with AM-weighted dosing.
Rare but serious#
- Cholestatic jaundice — yellowing of skin/eyes, dark urine, pale stools, severe itching. Stop immediately and get LFTs. Rare at sane doses (≤60 mg, ≤8 weeks) but the reason the cycle ceiling exists.
- Peliosis hepatis / hepatic adenomas — documented with long-term 17α-alkylated use. Why nobody serious runs orals year-round.
- Significant LVH or diastolic dysfunction — cumulative across many cycles. Warning signs: exercise intolerance, unusual shortness of breath, resting HR drift upward across a cycle.
- Thrombotic events — hematocrit rise is more a test-base problem than a turinabol problem, but the combined lipid/BP/hematocrit package raises clot risk. Donate blood if Hct creeps past 52%.
Hard contraindications#
- Pre-existing elevated LFTs, hepatic disease, or heavy alcohol use — do not run any c17-aa oral, turinabol included.
- Untreated hypertension or dyslipidemia — fix these with lifestyle and/or telmisartan/rosuvastatin before starting, not during.
- Pregnancy or pregnancy potential — androgenic teratogenic effects. Non-negotiable.
- Tested competition — the DHCMT long-term metabolite is the reason the 2008 and 2012 Olympic retests caught so many athletes. Treat turinabol as a no-go for any tested federation within ~6 months of competition, and realistically longer.
"The long-term metabolite M3 enables detection of DHCMT administration in urine samples for more than 40–50 days after intake, which is substantially longer than the period of performance enhancement." — Sobolevsky & Rodchenkov, Drug Testing and Analysis (2021)
- Concurrent hepatotoxic drugs — isotretinoin, high-dose acetaminophen, heavy NSAID use. Stack one hepatic stressor at a time.
Gender-specific and PCT considerations#
Women: Turinabol is one of the more manageable orals for female athletes because it doesn't aromatize and its androgenic rating is low (6 vs. testosterone's 100). The historical East German program ran women at 5–15 mg/day; community practice is 2.5–10 mg/day for 4–6 weeks.
"Documented athlete protocols ranged between 5 and 15 mg/day for female athletes and up to 40 mg/day for males, often administered over multi-year periodized cycles." — Franke & Berendonk, Clin Chem (1997)
Virilization (voice deepening, clitoral sensitivity, jawline/body hair changes, cycle disruption) is still possible and some of it does not reverse. Discontinue at the first sign — do not "push through" — and do not extend past 6 weeks regardless of how well it's going.
PCT: Turinabol is suppressive at any bodybuilding dose. If run solo or on an otherwise suppressive stack without an intended TRT endpoint, standard SERM PCT starts 3 days after last dose (short half-life, no ester to clear): nolvadex 40/40/20/20 mg over 4 weeks, or clomid 50/50/25/25 if nolvadex isn't available. Bloods at 4–6 weeks post-PCT to confirm recovery — LH, FSH, total T, free T, estradiol, SHBG. If you're running turinabol on top of a cruise/TRT dose of testosterone, no PCT is needed; resume cruise dose after the oral ends.
Stack & combine
Multipliers applied when these compounds run together. Values > 1 indicate a bonus on that axis. Tap a partner to expand the mechanism.
| Partner | Type | Lean | Fat loss | Recovery |
|---|---|---|---|---|
| synergistic | ×1.12 | ×1.05 | ×1.10 |
FAQ — Turinabol
Research & citations
5 studies cited on this page.
Conclusion
Turinabol has earned its reputation as a clean, dry strength oral that fits right between dbol and anavar on price, effect, and side effect profile. If you want steady strength gains and visual hardness without the scale bloat, this is a dialed-in choice — just respect its real suppression and hepatotoxic profile.
Key takeaways:
- Cycle: 40–60 mg/day for males, 2.5–10 mg/day for females; 6–8 weeks max (Franke & Berendonk, 1997)
- Oral dosing, preferably split AM/PM at 40 mg+; ~16 h half-life allows some flexibility (Schänzer et al., 1991)
- Always run a testosterone base or plan full SERM PCT — suppression is real at effective doses
- TUDCA (500–1000 mg/day) and strict liver/lipid bloodwork are non-negotiable on cycle
- Stacks cleanly with test, primo, or tren as a dry, SHBG-crushing oral; no aromatization, so no AI needed
- Do not use if you have elevated liver enzymes, lipid issues, or compete in tested sports (detection window: 45+ days) (Sobolevsky et al., 2021)
Used smart, turinabol delivers lean tissue, strength, and visual finish — with fewer surprises than most orals, but only if you stay on top of health support and bloods.