Package: 10 ampoules (100mg/ml 10ml)

Active Substance: Methenolone Enanthate

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Primorox, also known as Methenolone Enanthate, is an injectable anabolic steroid produced by Zerox Pharmaceuticals. This guide provides an in-depth look at Primorox, covering its indications, contraindications, administration, medical action, precautions, side effects, overdosage, and a concluding overview.


Primorox is indicated for several medical conditions and purposes. Primarily, it is used to treat individuals suffering from muscle wasting diseases, severe weight loss, and malnutrition. The steroid helps promote muscle growth, maintain lean body mass, and enhance overall physical strength and endurance. It is also used in the treatment of osteoporosis and certain types of anemia.

In the bodybuilding and athletic community, Primorox is highly valued for its ability to help users maintain muscle mass and strength during cutting cycles. It is known for its mild nature, making it suitable for both men and women looking to enhance their physique without significant side effects.


Primorox is not suitable for everyone. The following conditions are contraindications for its use:

  • Prostate cancer or breast cancer in men
  • Breast cancer in women with hypercalcemia
  • Severe liver or kidney disease
  • Known hypersensitivity to Methenolone or any of its components
  • Pregnancy or breastfeeding

Women who are pregnant or may become pregnant should avoid Primorox due to the potential risk of fetal harm. Additionally, individuals with pre-existing heart conditions or a history of cardiovascular issues should refrain from using Primorox, as it can exacerbate these conditions.


Primorox is administered via intramuscular injection. The typical dosage for therapeutic purposes varies based on the condition being treated but generally ranges from 100 to 200 milligrams per week. For bodybuilding and athletic purposes, the dosage is often higher, usually between 400 to 600 milligrams per week. The injections are typically given once or twice per week to maintain stable blood levels.

The duration of a Primorox cycle can vary but usually lasts between 8 to 12 weeks. It is common for users to stack Primorox with other anabolic steroids to enhance results. After the cycle, post-cycle therapy (PCT) is recommended to help restore the body’s natural hormone levels.

Medical Action

Primorox is a derivative of dihydrotestosterone (DHT), featuring a modified chemical structure that reduces its androgenic properties while retaining strong anabolic effects. This makes it effective for promoting muscle growth and strength without significant androgenic side effects.

The steroid works by binding to androgen receptors in muscle tissues, which stimulates protein synthesis and nitrogen retention. This leads to increased muscle mass and improved recovery times. Primorox also enhances red blood cell production, which improves oxygen delivery to muscles and boosts endurance. Additionally, it has a positive effect on collagen synthesis and bone mineral content, making it beneficial for joint and bone health.


While using Primorox, certain precautions should be taken to ensure safety:

  • Regular blood tests to monitor liver and kidney function
  • Monitoring blood pressure and cholesterol levels
  • Avoiding use in individuals with a history of cardiovascular disease
  • Being aware of potential masculinizing effects in women
  • Not exceeding recommended dosages to minimize side effects

Athletes should also be aware of drug-testing regulations in their sport, as Methenolone Enanthate can be detected in the body for several weeks after the last injection.

Side Effects

Like any anabolic steroid, Primorox can cause side effects. Some common side effects include:

  • Acne and oily skin
  • Hair loss in those predisposed to male pattern baldness
  • Increased body hair growth
  • Voice deepening in women
  • Changes in libido

More serious side effects can include:

  • Liver toxicity
  • Increased risk of cardiovascular disease
  • High blood pressure
  • Elevated cholesterol levels
  • Suppression of natural testosterone production

Prolonged use of Primorox can lead to more severe health issues, including liver damage and an increased risk of heart attack or stroke. Users should be aware of these risks and monitor their health regularly.


Overdosage of Primorox can intensify the side effects mentioned above and may lead to severe cardiovascular issues, liver damage, or hormonal imbalances. If an overdose is suspected, it is crucial to seek medical attention immediately. Treatment for overdose typically involves discontinuing the drug and managing symptoms through supportive care.


Primorox, or Methenolone Enanthate, is a potent anabolic steroid used to enhance muscle mass and performance. While it is effective for these purposes, it is essential to use it responsibly and under medical supervision to minimize potential side effects. Regular monitoring and adherence to recommended dosages can help mitigate risks. As with any anabolic steroid, it is important to weigh the benefits against the potential health risks and to consider alternative methods for achieving fitness goals.

In summary, Primorox is a versatile steroid that offers significant benefits for those looking to improve muscle mass, strength, and overall physical performance. However, it is not without its risks, and responsible use is crucial to ensure safety and effectiveness. Whether you are a seasoned athlete or a bodybuilder looking to enhance your performance, understanding the proper use and potential risks of Primorox can help you make informed decisions and achieve your fitness goals safely.

Primorox should be considered a serious commitment, requiring diligent monitoring and a thorough understanding of its effects on the body. By taking the necessary precautions and using the drug responsibly, users can maximize its benefits while minimizing the potential for adverse effects. Remember, the key to success with any anabolic steroid is balance, responsibility, and a well-rounded approach to fitness and health.


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