Skip to Main Navigation
Skip to Page Content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.


The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Nomination Summary for Testosterone (N20401)

Nominated Substances: Testosterone, Testosterone propionate, Testosterone oenanthate

Nomination Date: 11/13/2003

Nominator: Private Individual

Rationale: The rapidly growing use of testosterone therapy has outpaced the meager scientific evidence about its benefits and risks. Testosterone therapy has been approved by the FDA only for treating a narrow group of clinical conditions marked by very low testosterone levels, yet doctors have been prescribing it much more widely. Last year more than 800,000 patients, mostly middle-aged men, were treated with testosterone. More studies are needed to determine the risks, such as prostate cancer and cardiovascular disease, associated with its use.

NTP Principles: not specified

More Detailed Information