This article was reviewed by Felix Gussone, MD. Key Takeaways: In the U.S., testosterone is a controlled substance, so you’ll ...

Many healthcare providers regard testosterone cypionate and testosterone enanthate as interchangeable, but each has differences in their ingredients and duration of action. These differences influence ...

Injectable testosterone esters and transdermal testosterone gels have generally been assumed to be equally safe and effective forms of testosterone-replacement therapy for male hypogonadism. Now, ...

Testosterone substitution in male hypogonadism is a recognized tool to treat symptomatic patients. Various forms of this treatment exist including a long-acting intramuscular form using testosterone ...