Package: 100 tabs (25mg/tab)

Active Substance: Mesterolone

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Proviron, also known as Mesterolone, is an oral medical drug manufactured by Dragon Pharma. It is widely known in the bodybuilding and athletic communities for its unique properties and benefits. This comprehensive guide will cover the indications, contraindications, administration, medical action, precautions, side effects, overdosage, and conclusion regarding Proviron, with a particular focus on its use in Post Cycle Therapy (PCT).


Proviron is primarily indicated for:

  • Androgen Deficiency: It is prescribed to men who suffer from low testosterone levels and associated conditions such as hypogonadism.
  • Infertility: Proviron can be used to treat certain types of male infertility due to its ability to improve sperm count and quality.
  • Estrogen Control: In bodybuilding, Proviron is used to manage estrogen levels, reducing water retention and preventing gynecomastia (development of breast tissue in men).
  • Post Cycle Therapy (PCT): After a cycle of anabolic steroids, Proviron helps restore natural testosterone production and mitigate the adverse effects of estrogen rebound.

In the fitness world, Proviron’s primary role is to enhance muscle hardness, improve libido, and support hormonal balance during PCT.


Proviron is not suitable for everyone and should be avoided in the following cases:

  • Liver Disease: Individuals with severe liver conditions should not use Proviron due to its potential hepatotoxicity.
  • Prostate Cancer: Men with prostate cancer or a history of prostate issues should avoid Proviron as it can exacerbate these conditions.
  • Breast Cancer: It is contraindicated in men with breast cancer.
  • Pregnancy and Breastfeeding: Women who are pregnant or breastfeeding should not use Proviron.
  • Hypersensitivity: Individuals with a known allergy to Mesterolone or any of its components should avoid this medication.

A thorough medical evaluation is essential before starting Proviron to ensure it is safe based on personal health conditions and medical history.


Proviron is administered orally in tablet form. The dosage and duration of use depend on the individual’s goals and medical advice.

  • Dosage: For medical purposes, the typical dosage ranges from 25 to 75 mg per day, divided into two or three doses. In bodybuilding, dosages may vary but usually fall within the same range.
  • Cycle Duration: The duration of use can vary but generally lasts between 4 to 12 weeks. During PCT, it is used for a shorter period, typically 4 to 6 weeks.

Adhering to the prescribed dosage and cycle length is crucial for minimizing risks and maximizing benefits.

Medical Action

Proviron exerts its effects through several mechanisms:

  • Androgenic Activity: Proviron is a potent androgen, which helps enhance muscle hardness, improve libido, and increase overall energy levels.
  • Anti-Estrogenic Effects: It binds to estrogen receptors, preventing estrogen from exerting its effects and reducing water retention and gynecomastia.
  • Improved Fertility: Proviron improves sperm count and quality, making it beneficial for men dealing with infertility issues.
  • Post Cycle Therapy (PCT): In PCT, Proviron helps restore natural testosterone production by providing an androgenic stimulus without suppressing the hypothalamic-pituitary-gonadal axis.

These actions make Proviron a valuable tool for both medical and bodybuilding purposes.


Using Proviron requires careful monitoring and precautions to minimize potential health risks:

  • Liver Function Tests: Regular liver function tests are recommended due to the potential hepatotoxicity of Proviron.
  • Prostate Monitoring: Men should undergo regular prostate exams and monitoring, especially those with a history of prostate issues.
  • Medical Evaluation: A thorough medical evaluation is recommended before starting Proviron, including a complete medical history and physical examination.

Patients should inform their healthcare provider about any existing medical conditions, allergies, or medications they are taking to avoid potential interactions and complications.

Side Effects

Proviron can cause a range of side effects, some common and others more severe. Common side effects include:

  • Liver Toxicity: Although less hepatotoxic than other oral steroids, Proviron can still affect liver function, especially with long-term use.
  • Prostate Enlargement: Due to its androgenic properties, Proviron can cause prostate enlargement, leading to urinary issues.
  • Acne and Hair Loss: Androgenic effects can also lead to acne and accelerated hair loss in predisposed individuals.
  • Mood Changes: Some users report increased aggression, irritability, and mood swings.

Less common but more severe side effects include:

  • Severe Liver Damage: Prolonged use can lead to significant liver damage or failure.
  • Cardiovascular Issues: High doses can affect cholesterol levels, potentially increasing the risk of cardiovascular diseases.

It is essential to seek medical attention if severe side effects occur. Adjusting the dosage or discontinuing the use of Proviron may be necessary to mitigate adverse effects.


An overdose of Proviron can lead to severe health complications. Symptoms of overdose may include extreme liver pain, jaundice, severe mood swings, and cardiovascular issues.

In case of an overdose, it is crucial to seek emergency medical assistance. Treatment typically involves supportive care and monitoring of vital signs. In some cases, medications may be administered to counteract the effects of excess Proviron.


Proviron, or Mesterolone, from Dragon Pharma, is a potent oral anabolic steroid known for its unique benefits in bodybuilding and athletic communities. While it offers numerous advantages, including muscle hardness, improved libido, and hormonal balance during PCT, it also presents significant risks, especially when used improperly or without medical supervision.

Understanding the indications, contraindications, administration, medical action, precautions, side effects, and potential for overdosage is crucial for responsible use of Proviron. This comprehensive approach ensures that the benefits are maximized while minimizing the risks associated with this potent medication.

By adhering to recommended guidelines and maintaining regular health monitoring, users can achieve their performance goals while safeguarding their overall health. Whether used for muscle hardness, libido improvement, or PCT, Proviron requires a disciplined approach and a commitment to responsible use. With the right precautions and medical guidance, it can be an effective solution for achieving significant gains and enhancing athletic performance.


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