Turinabol Overview & Features

Turinabol (Chlorodehydromethyltestosterone, “Tbol,” or Oral Turinabol) is a modified form that combines the chemical structures of Dianabol and Clostebol.

Its chemical name, 4-chlorodehydromethyltestosterone, describes this combination.

It earned the nickname “mild Dianabol” because it doesn’t aromatize and has a low androgenic rating.

It was first released in 1962 and was manufactured by Jenapharm in East Germany.

“1mg and 5mg tablets”

Turinabol was favored by medical professionals for its separation of anabolic and androgenic effects and was used not only in adult men but also in women and children.

The 1mg tablets were prescribed to sensitive individuals to help reduce body fat and increase bone strength.

Turinabol was one of the key anabolic steroids in East Germany’s state-sponsored doping program.

From the late 1960s until 1989, it was administered to approximately 10,000 athletes and used as an anabolic steroid that was undetectable at the time.

In 1994, Jenapharm ceased production, and although it was acquired by Schering in 1996, it was not put back into production.

This led to Tbol being regarded as a rare and special steroid.

Currently, there is no pharmaceutical production of this drug; it relies solely on underground lab (UGL) manufacturers.

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Chemical Characteristics of Tbol (Turinabol)

Turinabol is a modified form of Dbol (Methandrostenolone), combining the chemical structures of Dianabol and Clostebol (4-chlorotestosterone).

Tbol has the general chemical structure of Dianabol with the addition of the 4-chloro substitution from Clostebol.

As a result, Tbol becomes a much milder hormone than Dbol. The alteration in its chemical structure eliminates aromatization into estrogen and weakens its androgenic strength.

Turinabol has a low anabolic rating of 54 and an androgenic rating of 6, which allows for a distinct and favorable separation between its anabolic and androgenic effects.

Its anabolic strength is lower than Dianabol’s rating of 90-210, but this clear separation can be more advantageous for individuals.

Thanks to its chemical modifications, Turinabol has a long half-life of 16 hours and can bind with Sex Hormone Binding Globulin (SHBG).

Additionally, it is C17-alpha alkylated to increase oral bioavailability, which imparts a degree of liver toxicity.

Turinabol features a double bond between carbon 1 and carbon 2, which reduces its androgenic strength, and the added chloro group at the 4th carbon blocks aromatization and further lowers its androgenic potency.

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Characteristics of Turinabol (Tbol)

Tbol has a clear separation of its androgenic and anabolic effects, making it a weaker anabolic steroid than its parent hormone, Dbol.

However, its androgenic effects are much lower relative to its muscle-building capabilities, and because it does not convert to estrogen, it exhibits no estrogenic effects whatsoever.

Because Tbol is weaker than Dianabol, the dosages required to achieve results are considerably higher.

Athletes and bodybuilders can expect steady, quality lean mass gains without estrogenic effects like bloating or gynecomastia.

The gains in mass and strength are not dramatic but are characterized by a steady increase over time.

Since it doesn’t convert to estrogen, it is also utilized as an ideal cutting agent during fat loss phases or contest preparation.

Furthermore, Tbol acts as an auxiliary agent that enhances the effectiveness of other anabolic steroids by binding to SHBG.

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Turinabol (Tbol) Side Effects

Oral Turinabol is known as a ‘mild’ oral anabolic steroid, belonging to the same category as Anavar (Oxandrolone) and Primobolan.

Because Turinabol has no estrogenic component and does not raise estrogen levels, it is considered a relatively safe compound for women and beginners.

Androgenic Side Effects

Turinabol has low androgenic strength due to its double bond between carbons 1 and 2 and its 4-chloro modification.

However, at high dosages, androgenic symptoms such as aggression, anger, and acne can occur.

Turinabol is metabolized by the 5-alpha reductase enzyme, but this rate is very low, making 5AR inhibitors largely ineffective.

Estrogenic Side Effects

Unlike Dianabol, Turinabol does not convert to estrogen.

The chemical composition of Turinabol prevents it from interacting with estrogen receptors and it does not produce aromatase, thus eliminating side effects like gynecomastia.

Testosterone Suppression

Anabolic steroids suppress endogenous testosterone production.

While Turinabol is mild, it can interact with androgen receptors and reduce the production of gonadotropins, so a Post Cycle Therapy (PCT) is recommended.

Anti-estrogens like Nolvadex and Clomid are used to restore endogenous testosterone.

Hepatotoxicity and Cholesterol-Related Side Effects

Turinabol is a C17-alpha alkylated steroid, and its use can lead to elevated liver enzyme levels.

Past studies showed that dosages of 15-35mg did not have a significant impact, but with many current users taking 60mg or more, negative effects are anticipated.

Changes in cholesterol profiles can also be severe, with a decrease in HDL and an increase in LDL heightening cardiovascular risk.

Cardiovascular Side Effects

Oral steroids can worsen cholesterol levels.

Use without proper precautions can lead to thickened blood, arterial plaque formation, and high blood pressure, increasing the risk of Coronary Heart Disease (CHD).

Therefore, it is recommended not to use it for more than 6-8 weeks and to supplement with substances like curcumin, citrus bergamot, vitamin K2, and omega-3s.

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Turinabol Dosage and Administration

Turinabol has a low androgenic rating of 6 and an anabolic strength of 53, creating a nearly perfect balance between side effects and benefits.

Thanks to its low androgenic rating, side effects like acne, aggression, anger, and strength increases are rare but still possible.

Because its anabolic effects are weaker than Dbol’s, bodybuilders do not consider Tbol a mass-gaining drug.

With an anabolic rating about half that of testosterone, a dosage of 40-60mg per day is recommended for beginners.

Dosages exceeding 80-100mg can increase the risk of side effects along with steady weight gain.

Medical dosages are 5-10mg per day, used for patients with muscle-wasting diseases.

Women can start at 1mg and take up to a maximum of 2.5mg.

Historically, the East German weightlifting team used 10g per year (27mg per day), and sprinters used 730mg per year (less than 2mg per day) of Turinabol.

Beginners may use 30-40mg per day, intermediate users 50-80mg, and advanced and professional users can go 80-100mg or more, but extreme doses like 150mg can cause side effects, making it better to choose a more effective androgen.

A dosage of 5-10mg per day is appropriate for women; abuse can lead to permanent symptoms like acne, aggression, and virilization.

Turinabol’s half-life is 16 hours, which is longer than Dianabol’s (4.5-6 hours), so it can be taken once a day.

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Turinabol Cycle Protocols

Turinabol is typically used in conjunction with other anabolic steroids and, as a mild compound, it lowers the user’s natural testosterone levels.

Because Turinabol’s anabolic and androgenic actions are not strong, users generally prefer more potent anabolics.

This mild anabolic is suitable for cutting phases, fat loss, and contest preparation.

A cycle using 40-60mg of Turinabol alone for 6-8 weeks enhances strength and lean muscle, and it preserves muscle in a caloric deficit by preventing protein catabolism.

This is advantageous for the goal of lowering body fat percentage below 10%.

In advanced stacks, Turinabol is used to create a synergistic effect with testosterone.

Short or long-estered testosterone can be used; combining 100mg of Testosterone Propionate every other day with 60mg of Turinabol for 8 weeks is effective for increasing muscle mass and for dieting.

For long cycles with esters like Testosterone Enanthate, Oral Turinabol is used for the initial 4-6 weeks to stabilize plasma levels and kickstart gains in muscle mass and protein synthesis.