Irwin Goldstein, MD, director of San Diego Sexual Medicine, takes testosterone replacement therapy, just like many of his patients. Over more than two decades, he’s tried it all—shots, pellets, gels, ...

This article was reviewed by Felix Gussone, MD. Key Takeaways: In the U.S., testosterone is a controlled substance, so you’ll need a prescription to acquire it. While you take it, your provider will ...