You don’t have to be a genius to realize that, when you’re taking away the most potent form of testosterone, and you’re affecting, for example, ejaculate volume, clearly something is changing.

You don’t have to be a genius to realize that, when you’re taking away the most potent form of testosterone, and you’re affecting, for example, ejaculate volume, clearly something is changing around the prostate area. Then, when people are coming back and saying they have libido issues, those are relevant.

—How Avodart and Proscar Affect Libido: Prostate Cancer Research Institute, May 3, 2021