Medical research

'Low T' therapy has yet to be proven: FDA

(HealthDay)—Testosterone supplements have long been marketed to aging men as a fountain of youth and virility, but there is still no proof they are safe or effective, according to the U.S. Food and Drug Administration.

Medical research

Opioid exposure tied to higher odds of low testosterone levels

(HealthDay)—Exposure to opioids is associated with increased likelihood of low testosterone levels, with increased odds as age and number of comorbidities increase, according to a study published in the December issue of ...

Health

Landmark study defines normal ranges for testosterone levels

A large study of more than 9,000 men has established harmonized reference ranges for total testosterone in men that when applied to assays that have been appropriately calibrated will effectively enable clinicians to make ...

Medical research

Testosterone therapy fails to treat ejaculatory dysfunction

Men who have ejaculatory disorders and low testosterone levels did not experience improved sexual function after undergoing testosterone replacement therapy, according to a new study published in the Endocrine Society's Journal ...

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