Package: 1 vial (250mg/ml 10ml)

Active Substance: Nandrolone Decanoate

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Decabol 250, also known as Nandrolone Decanoate, is an injectable anabolic steroid commonly used in the bodybuilding and athletic community for its muscle-building and performance-enhancing properties. It is indicated for individuals looking to achieve significant muscle mass gains, improved strength, and enhanced recovery. Decabol 250 is also used in the medical field to treat conditions such as anemia, osteoporosis, and muscle wasting diseases. Its ability to promote protein synthesis and nitrogen retention makes it an effective drug for both therapeutic and performance-enhancing purposes.


While Decabol 250 offers numerous benefits, it is not suitable for everyone. The following contra-indications must be considered:

  1. Pregnancy and Breastfeeding: Women who are pregnant or breastfeeding should not use Decabol 250 due to potential risks to the fetus or infant.
  2. Prostate Cancer: Men with prostate cancer should avoid this drug as it can stimulate the growth of cancer cells.
  3. Breast Cancer: Men with breast cancer should also avoid this medication for similar reasons.
  4. Severe Liver or Kidney Disease: Individuals with significant liver or kidney impairment should not use Decabol 250 as it may exacerbate these conditions.
  5. Cardiovascular Issues: Those with severe heart disease or hypertension should use caution, as this drug can worsen cardiovascular conditions.
  6. Allergic Reactions: Anyone who has had an allergic reaction to Nandrolone Decanoate or any of its ingredients should avoid using Decabol 250.


Proper administration of Decabol 250 is crucial to achieve desired results while minimizing risks. Here are some guidelines:

  1. Dosage: The typical dosage for bodybuilders and athletes ranges from 200 mg to 600 mg per week for men and 50 mg to 100 mg per week for women. It is recommended to start with a lower dose to assess individual tolerance.
  2. Injection Site: This drug should be administered via intramuscular injection, preferably in large muscle groups such as the glutes or thighs.
  3. Frequency: Decabol 250 is typically injected once or twice per week due to its long half-life, allowing for sustained anabolic effects.
  4. Cycle Length: Cycles usually last between 8 to 12 weeks. Prolonged use should be avoided to reduce the risk of adverse effects.
  5. Stacking: Decabol 250 can be stacked with other anabolic steroids to enhance muscle-building effects. However, this should be done under professional guidance to avoid complications.

Medical Action

Decabol 250 contains Nandrolone Decanoate, a synthetic anabolic steroid derived from testosterone. The medical action of this drug involves several key mechanisms:

  1. Protein Synthesis: Nandrolone enhances protein synthesis, promoting muscle growth and repair. This leads to increased muscle mass and strength.
  2. Nitrogen Retention: By improving nitrogen retention in muscles, this drug helps create an anabolic environment conducive to muscle growth.
  3. Red Blood Cell Production: Nandrolone stimulates the production of red blood cells, improving oxygen delivery to muscles and enhancing endurance.
  4. Inhibition of Catabolism: This drug helps prevent muscle breakdown by inhibiting catabolic processes, making it easier to maintain muscle mass during intense training.
  5. Increased Collagen Synthesis: Nandrolone has been shown to increase collagen synthesis, which can improve joint health and reduce the risk of injury.

The long half-life of Nandrolone Decanoate means that it provides sustained anabolic effects, making it a popular choice for bodybuilders looking for steady, long-term muscle gains.


Using Decabol 250 requires adherence to several precautions to ensure safe and effective use:

  1. Regular Monitoring: Regular blood tests to monitor liver function, cholesterol levels, and hormone levels are essential to avoid potential complications.
  2. Liver Health: Although Decabol 250 is less hepatotoxic than many other anabolic steroids, users should still avoid alcohol and other substances that can further stress the liver. Liver support supplements like milk thistle can be beneficial.
  3. Cholesterol Levels: This drug can negatively impact cholesterol levels, so maintaining a heart-healthy diet rich in omega-3 fatty acids is important.
  4. Prostate Health: Regular prostate exams are advised for men, particularly older individuals, to monitor for any potential prostate-related issues.
  5. Hydration: Staying well-hydrated is important to support overall health and minimize the risk of muscle cramps and kidney strain.
  6. Individual Response: Users should start with a lower dose to assess individual tolerance and response to the drug.

Side Effects

While Decabol 250 is effective for muscle growth and performance enhancement, it can cause side effects ranging from mild to severe:

Common Side Effects

  1. Acne: Increased androgen levels can lead to acne breakouts.
  2. Hair Loss: Men predisposed to male pattern baldness may experience accelerated hair loss.
  3. Mood Changes: Some users may experience mood swings, aggression, or irritability.
  4. Oily Skin: Androgenic effects can lead to increased oil production in the skin.
  5. Joint Pain: Some users report experiencing joint pain or discomfort.

Severe Side Effects

  1. Liver Toxicity: Although rare, prolonged use or high doses can lead to liver damage.
  2. Cardiovascular Issues: Decabol 250 can negatively affect cholesterol levels, increasing the risk of cardiovascular diseases such as heart attacks or strokes.
  3. Suppression of Natural Testosterone: Long-term use can suppress natural testosterone production, leading to hormonal imbalances and requiring Post Cycle Therapy (PCT).
  4. Gynecomastia: Improper use can lead to the development of gynecomastia, which is the enlargement of male breast tissue.
  5. Hypertension: Increased blood pressure can occur, necessitating regular monitoring and management.
  6. Kidney Damage: There is a potential risk of kidney damage with prolonged use, especially at high doses.


In the case of an overdose, immediate medical attention is necessary. Symptoms of Decabol 250 overdose may include:

  1. Severe Nausea and Vomiting: Excessive intake can cause severe gastrointestinal distress.
  2. Dizziness and Fainting: Overdosage can lead to extreme dizziness and potential fainting spells.
  3. Breathing Difficulties: Respiratory issues may arise in severe cases.
  4. Liver Damage: Overdose can exacerbate liver toxicity, leading to serious liver conditions.

Treatment for overdosage is supportive and symptomatic, focusing on stabilizing the patient and addressing specific symptoms. There is no specific antidote for Decabol 250 overdose.


Decabol 250 from British Dragon Pharmaceuticals is a powerful tool for those looking to enhance their muscle mass, strength, and overall physical performance. The long half-life of Nandrolone Decanoate provides sustained anabolic effects, making it a popular choice among bodybuilders and athletes. By promoting protein synthesis, nitrogen retention, red blood cell production, and collagen synthesis, Decabol 250 helps users achieve significant muscle gains, improved endurance, and better joint health.

However, the use of Decabol 250 requires careful consideration of its contra-indications, potential side effects, and necessary precautions. Proper administration, including dosage management and regular health monitoring, is crucial to maximizing its benefits and minimizing risks. Regular health check-ups, a balanced diet, and liver support supplements can help users safely harness the advantages of Decabol 250 while mitigating associated risks. By adhering to these guidelines, individuals can effectively use Decabol 250 to support their bodybuilding goals and maintain overall health and well-being.


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