Which medication is used as an androgen suppressor but cannot eliminate existing hair?

Spironolactone is utilized as an androgen suppressor, primarily due to its ability to block androgen receptors and inhibit the effects of androgens like testosterone. This action makes it effective in treating conditions such as hirsutism and androgenetic alopecia by reducing the hormonal influences that can contribute to hair growth. However, it is important to note that while spironolactone can help in reducing future hair growth by managing androgens, it does not have the capability to remove or eliminate hair that is already present.

In contrast, other options provided may have different primary uses or effects. For instance, finasteride is also an androgen suppressor but is primarily used to treat conditions like male pattern baldness and benign prostatic hyperplasia. Clomiphene is mainly a fertility drug and does not have a direct effect on androgen levels related to hair growth. Minoxidil is primarily used for stimulating hair growth rather than suppressing androgens, and it is typically used in hair loss treatments rather than as a hormonal therapy.