Medical research

Testosterone promotes prostate cancer in rats

A researcher who found that testosterone raised the risk of prostate tumors and exacerbated the effects of carcinogenic chemical exposure in rats is urging caution in prescribing testosterone therapy to men who have not been ...

Medications

FDA: Little evidence to support testosterone drugs (Update)

The Food and Drug Administration says there is little evidence that testosterone-boosting drugs taken by millions of American men are beneficial, though the agency is also unconvinced by studies suggesting the hormone carries ...

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