Testosterone supplementation did not show consistent benefit for cardiovascular risk , sexual function , mood and behavior , or cognition .
Studies that examined clinical cardiovascular endpoints have not favored testosterone therapy over placebo .
Testosterone is ineffective in treating erectile dysfunction and controlled trials did not show a consistent effect on libido .
Testosterone supplementation consistently increased muscle strength but did not have beneficial effects on physical function .
Most studies on mood-related endpoints found no beneficial effect of testosterone treatment on personality , psychological well-being , or mood .
Testosterone products are recommended by some prescribers in response to a diagnosis or presumption of " low testosterone " ( low-T ) for cardiovascular health , sexual function , muscle weakness or wasting , mood and behavior , and cognition .
Testosterone therapy increases sexual desire in ageing men with low–normal testosterone levels and symptoms of androgen deficiency
Although decline in sexual function is a common reason for ageing men to seek advice regarding testosterone therapy , placebo-controlled trial data have been unable to show a consistent , beneficial role for testosterone . The objective of this study was to determine the effect of testosterone therapy on sexual function in non-obese ageing men with symptoms of and rogen deficiency and low – normal serum testosterone levels . A total of 60 men aged 55 years or older in good general health with total testosterone ( TT ) levels < 15 nM , and with symptoms suggestive of and rogen deficiency , were r and omized in a double-blinded protocol to transdermal testosterone patches or placebo for 12 months  . Sexual function was assessed using the International Index of Erectile Function at weeks 0 , 26 and 52 . In men receiving testosterone TT levels increased by 30 % ( P=0.01 ) and luteinizing hormone decreased by 50 % ( P<0.001 ) . Relative to placebo , testosterone therapy improved sexual desire ( P=0.04 ) ; however other parameters of sexual function including erectile function were unaffected by the treatment . Ageing men in good general health and with symptoms of and rogen deficiency and low – normal serum testosterone levels receiving 12 months of transdermal testosterone therapy experienced , relative to placebo , improved sexual desire but no effect on other parameters of sexual function
Testosterone supplementation did not show consistent benefit for cardiovascular risk , sexual function , mood and behavior , or cognition .
Studies that examined clinical cardiovascular endpoints have not favored testosterone therapy over placebo .
Testosterone is ineffective in treating erectile dysfunction and controlled trials did not show a consistent effect on libido .
Testosterone supplementation consistently increased muscle strength but did not have beneficial effects on physical function .
Most studies on mood-related endpoints found no beneficial effect of testosterone treatment on personality , psychological well-being , or mood .
Testosterone products are recommended by some prescribers in response to a diagnosis or presumption of " low testosterone " ( low-T ) for cardiovascular health , sexual function , muscle weakness or wasting , mood and behavior , and cognition .