Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Tetrahydrogestrinone
Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026
Tetrahydrogestrinone: A "designer steroid" with anabolic properties. Known as THG. A very potent androgenic steroid, with side effects such as hirsutism, acne and infertility. Considered a controlled substance in the United States. (CIII)