How can testosterone secretion be suppressed?

There is no safe or medically appropriate way to broadly “suppress” testosterone (the primary biologically active androgen in humans) in individuals with normal endocrine function. Testosterone plays essential roles in maintaining muscle mass, bone mineral density, red blood cell production, libido, mood regulation, and cognitive health—particularly in cisgender men and transgender women undergoing gender-affirming hormone therapy. Unnecessarily lowering testosterone can lead to fatigue, depression, osteoporosis, anemia, decreased muscle strength, and metabolic dysfunction.

In clinical practice, testosterone suppression is only indicated under specific, carefully monitored circumstances. For example, gonadotropin-releasing hormone (GnRH) agonists (e.g., leuprolide, goserelin) or antagonists (e.g., degarelix, relugolix) are used to suppress pituitary gonadotropin secretion, thereby reducing testicular testosterone production in conditions such as advanced prostate cancer or as part of feminizing hormone therapy for transgender women. These agents require prescription use, regular monitoring of serum testosterone and estradiol levels, and assessment of bone health, lipid profiles, and cardiovascular risk.

Non-pharmacologic approaches—such as weight loss in individuals with obesity, management of insulin resistance, or treatment of hyperprolactinemia—may modestly modulate androgen levels when pathologic excess is present (e.g., in polycystic ovary syndrome), but they do not constitute “suppression” in the pharmacologic sense and should be guided by diagnosis-specific evaluation.

If you are experiencing symptoms suggestive of androgen excess (e.g., hirsutism, acne, menstrual disturbances, or virilization) or are exploring hormone-related goals (e.g., gender affirmation), consult an endocrinologist or qualified healthcare provider. Self-directed attempts to alter sex hormone levels—via supplements, unregulated compounds, or off-label use of medications—pose serious health risks and are strongly discouraged.