What is Trestolone (7-alpha-methyl-19-nortestosterone)?

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Last updated: March 4, 2025View editorial policy

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From the Research

Trestolone (7-alpha-methyl-19-nortestosterone) is a synthetic anabolic steroid that should be avoided for non-medical use due to significant health risks. It was originally developed as a potential male hormonal contraceptive and for hormone replacement therapy, but is now primarily found in unregulated bodybuilding supplements. Trestolone is extremely potent—about 10 times more potent than testosterone—and acts as both an androgen and progestin in the body. Users typically administer it via injection at doses ranging from 5-25mg daily or through transdermal application, often in "cycles" of 8-12 weeks. Side effects can be severe and include liver damage, cardiovascular issues (including increased blood pressure and negative cholesterol changes), suppression of natural testosterone production, estrogen-related problems like gynecomastia, and potential long-term reproductive harm. The compound lacks FDA approval for human use in the United States and has limited clinical research supporting its safety, as noted in studies such as 1. Anyone considering performance enhancement should instead focus on legal, safer approaches including proper nutrition, natural training, and consultation with healthcare providers for legitimate hormone issues.

Some key points to consider when evaluating the use of Trestolone include:

  • The potential for severe side effects, including liver damage and cardiovascular issues
  • The lack of FDA approval for human use in the United States
  • The limited clinical research supporting its safety
  • The availability of safer, legal alternatives for performance enhancement
  • The importance of consulting with healthcare providers for legitimate hormone issues, as discussed in studies such as 2, 3, 4, and 5.

Overall, the risks associated with Trestolone use outweigh any potential benefits, and it should be avoided for non-medical use. Instead, individuals should focus on evidence-based approaches to improving their health and well-being, such as those discussed in 1.

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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