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Primobolan is a steroid that consists of methenolone acetate or enantate. The drug is used in medicine to treat anaemia and cachexia, in sports to preserve muscle mass and improve the relief of muscles.

Primobolan. Characteristics of the active ingredient

The active component by chemical structure is a synthetic anabolic steroid derived from dihydrotestosterone. According to the instructions, Primobolan is used to treat anemia, as it has the property of stimulating the bone marrow. The drug enhances protein and energy production, which makes it effective in cases of exhaustion after injuries, operations and chronic diseases. The drug is available in 2 forms: Depot - an option for injections, Oral - pills for ingestion. Primobolan Depot more often contains methenolone enanthate, so the drug has a prolonged effect and a long withdrawal period. The tablet form consists of methenolone acetate, which is quickly metabolised and removed from the body.

The advantage of Primobolan in tablets is that it has no toxic effect on the liver, unlike other forms of steroids for oral use. The disadvantage of this form of release is that it is short-lived and requires regular intake.

Use in sports

Primobolan is rarely used for medical purposes, but it has gained popularity among bodybuilders and athletes. The substance has powerful anabolic activity (88% of testosterone) and its androgenic properties are lower than those of the natural male hormone. Specialists recommend buying Primobolan for the drying cycle, when the aim is to improve the relief and venousity of muscles and quickly improve body quality. The substance speeds up metabolism, activates the breakdown of lipids and reduces the percentage of subcutaneous fat. The drug is not as effective in the process of muscle mass gain, because as anabolic it is weaker than Nandrolon or Anadrol.

The advantage of methenolone is that it does not have a rolling back phenomenon. There is no reduction in gained muscle mass after completing the therapy. The drug provides a prolonged effect when injected. The widespread use of Primobolan in sports and bodybuilding is also due to the fact that it does not undergo aromatization in the male body. No female sex hormones are formed from the drug, so the risk of adverse reactions (gynaecomastia and oedema) is minimal.

The price of Primobolan in the UK is affordable for everyone. Athletes often choose this steroid to improve their body's external parameters and reduce fatty tissue to improve the efficiency of drying cycles.

Primobolan. Contraindications

There are few restrictions on the use of methenolone:

  • individual intolerance to the active component;
  • prostate neoplasms;
  • severe liver function disorders;
  • renal failure.

The use of Primobolan for women in sports is not recommended, as it causes male genital virilisation and menstrual cycle problems, but there is no strict prohibition.


It is undesirable to use this medicine with agents that affect the activity of liver enzymes. This includes some antibiotics, tranquilisers and antifungal drugs. If this rule is ignored, there is a risk of changing metenolone concentrations and reducing its effectiveness. The drug is allowed to be combined on drying with testosterone and its derivatives, but it is prohibited to take it simultaneously with glucocorticoids and mineralocorticoids.

Primobolan. Side effects

Specialists call the drug one of the safest anabolic steroids, but in some men it causes unwanted symptoms:

  • unreasonable nervousness and irritability;
  • aggression attacks;
  • sleep disturbances;
  • hair loss;
  • increased liver enzyme levels.

Feedback shows that Primobolan can reduce testosterone levels, especially when used in high doses. Studies show that prolonged course therapy with methenolone has an oppressive effect on the genital glands and reduces male hormone levels by 50%. Side effects occur during the course: reduced libido and potency problems, fat gain, reduced body relief.

Primobolan. Reception courses

To get the best results, you need to use metenolone for 8 weeks or more. The substance has a cumulative effect; the first effects are visible a few weeks after the start of administration.