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Provironum or Proviron (Mesterolone) is a hormonal drug that has inherent moderate androgenic activity. This is one of the oldest drugs of this kind. It entered the market in 1934 and was manufactured by the huge pharmaceutical company Schering. Its main component is known as mesterolone. Over the years, he had different names. Nevertheless, Proviron is the most recognizable brand that remains popular today both in treatment and in bodybuilding.


  • Decreased estrogenic activity.
  • Increased muscle density and hardness.
  • Increased libido.


Side effects

  • Gynecomastia.
  • Increased sexual desire.
  • Depression, aggression, delight, irritability.
  • Excessive hairiness.
  • Acne
  • Prostate enlargement.
  • Blood in urine or ejaculate.
  • Frequent and prolonged painful erections.
  • Gastric pain.
  • Fluid retention

How to take Proviron

The ideal dose of Mesterolone is 25-100 mg per day for men and 25 mg every day for women, although some athletes, both men and women, increase the dose to 50-125 mg. Proviron tablets should not be chewed, they need to be swallowed with plenty of water.

Before using or buying the drug, it is advisable to consult a doctor, especially if you suffer from cardiovascular complications, epilepsy, diabetes, porphyria (a rare metabolic disorder), migraine, impaired kidney function or high blood pressure. The drug should not be taken by people suffering from a previous or existing tumor or high levels of calcium in the blood.

Overdose or abuse of this drug can lead to such complications as oily skin, acne, exacerbation of baldness, hair growth on the body / face, menstrual disorders in women.

Always remember that the dosage of the product is individual. You must choose the safest and most effective dose for you.

Additional information