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Organs involved

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Brain areas affected

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Functions affected

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Processes affected

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Social issues 

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Prone countries 

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4-Hydroxy-androst-4-ene-3,17-dione / Controlled substance

  • Also known as formestane, is a steroidal aromatase inhibitor used in medical settings to treat estrogen-dependent conditions like breast cancer in postmenopausal women. May require documentation for purchase or use due to its controlled status. It is banned in sports as a prohibited substance under the World Anti-Doping Code, classified as an anabolic agent

  • Fatigue, Menopausal-like symptoms, Hormonal imbalances, Mood swings, Gynecomastia

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  • Injection site reactions, Liver strain, Gynecomastia

  • Select one to explore, then click icon

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symptoms at least 

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months at least 

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