Chemical names:
4-chloor-17b-hydroxy-17a-methyl-androst-1,4-dieen-3-on;
4-chloro-1-dehydro-17a-methyltestosterone;
4-chloor-17a-methyl-17b-hydroxy-1,4-androstadieen-3-on
Chemical formula: C₂₀H₂₇O₂Cl
Active lifespan: 16 Hours
Anabolic/androgenic ratio: >100:0
General Information
Oral Turinabol was originally developed by East German researchers in the mid-20th century to support their athletes during the Olympic Games and other international competitions. It is believed that this substance played a major role in the dominance of East German athletes during that period, along with their revolutionary training methods. no medical application for this substance; it is used exclusively as a performance enhancer by athletes.
Turinabol is a 17-alpha-alkylating derivative of methandrostenolone (Dianabol). This means that as an oral steroid it can survive the first pass through the liver, but that this also hepatotoxicity increases. Users of oral turinabol typically report little to no moisture retention and are more likely to experience a “dry and hard” appearance, typical of steroids with low androgenic activity. With a proper diet and training regimen, lean muscle mass gains without bloat are achieved.
De 4-chloro adjustment in the structure prevents aromatization, which means that users no estrogen-related side effects such as gynecomastia, acne, or water retention—even at high doses. In fact, turinabol is chemically almost identical to methandrostenolone, except for this structural change, demonstrating the impact a small chemical adjustment can have on a compound's effectiveness.
Turinabol also reduces the binding of SHBG (Sex Hormone Binding Globulin), which means that more free testosterone remains available to exert its anabolic effect. This effect can be noticeable even at low doses.
Use / Dosage
Oral turinabol is ideally suited for building up lean muscle mass and for maintaining muscle mass while dieting. Don't expect an extreme increase in muscle size or strength, but rather an improvement in muscle quality. That is why it is often used in cutting phases or when drying.
Dosages for men:
- Novice users: 40–60 mg per day
- Experienced users: 100–150 mg per day (not recommended due to increased risks)
Dosages for women:
- 5–15 mg per day
- Higher doses increase the risk of virilization (masculinization)
Since the half-life is approximately 16 hours, it is recommended to increase the daily dose in two equal portions to divide (e.g. morning and evening) to stable blood values to keep your sence of controle.
Turinabol is rarely used solo. Men usually combine it with a form of testosterone to prevent loss of libido and testosterone suppression. As with all anabolic steroids turinabol suppresses natural testosterone production, which in some cases leads to sexual dysfunction. However, some users report that during a solo cycle no noticeable decrease in libido.
Since oral turinabol liver toxicity can cause, like all 17-alpha-alkylating oral steroids, it is not recommended to last a course longer than 6–8 weeksDespite this, some users extend the duration. If this happens, regular blood tests are recommended to detect damage early.
Risks / Side Effects
Turinabol is generally a mild remedy in terms of side effects. Due to the lack of androgenic effects, androgenic side effects (such as acne, hair loss and aggression) minimal to absent. However, there is a isolated case of testicular cancer in which long-term and high-dose use of oral turinabol may have played a role. However, there are no other proven cases which link turinabol and cancer.
In women, virilizing effects occur at higher doses (such as deepening of the voice and increase in body hair), but at low doses this usually does not occur - especially with short-term use.
As with most oral steroids, there are also some considerations to be taken with turinabol. liver and cholesterol levels:
- Elevated liver enzymes
- Lowered HDL ("good" cholesterol)
- Elevated LDL ("bad" cholesterol)
Therefore, long-term use not recommended, and liver support supplements (such as milk thistle or NAC) should preferably be used.
References
- Kaufmann G, Schumann G, Horhold C. Influence of 1-double bond and 11 beta-hydroxy group on stereospecific microbial reductions of 4-en-3-oxo-steroids. J Steroid Biochem. 1986 Oct;25(4):561-6.
- Schumann W. The pharmacokinetics of Oral-Turinabol in humans. Pharmazie. 1991 Sep;46(9):650-4
- Froehner M, Fischer R, Leike S, Hakenberg OW, Noack B, Wirth MP. Intratesticular leiomyosarcoma in a young man after high dose doping with Oral-Turinabol: a case report. Cancer. 1999 Oct 15;86(8):1571-5
- Franke WW, Berendonk B. Hormonal doping and androgenization of athletes: a secret program of the German Democratic Republic government. Clinical Chemistry. 1997;43:1262-1279
