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 .
Efficacy of testosterone, trazodone and hypnotic suggestion in the treatment of non-organic male sexual dysfunction.
OBJECTIVE To examine the effects of hypnotic suggestions or the administration of testosterone or trazodone to impotent men with no detectable organic cause for the impotence . PATIENTS AND METHODS The study comprised 79 men in whom clinical and laboratory examinations revealed no organic cause for their impotence : 20 men ( mean age 38.7 + /- 11.47 years ) received testosterone , 21 men ( mean age 39.5 + /- 10.73 years ) received trazodone , 20 men ( mean age 34.2 + /- 11.69 years ) underwent hypnosis and 18 men ( mean age 39.1 + /- 11.46 years ) served as controls . They were assessed by interview 4 , 6 and 8 weeks after starting treatment : the patient 's reports were verified by interviewing their partners . RESULTS Men who received a placebo had a 39 % improvement in sexual function , while the rates of improvement in the treated groups were higher , but not significantly so . The success rates of testosterone and trazodone treatment and hypnotic suggestions were 60 % , 67 % and 80 % , respectively . CONCLUSION Although the improvement was not statistically significant , treatment with testosterone and trazodone could be used as an adjuvant therapy in nonorganic male sexual dysfunction . The only treatment superior to placebo seemed to be hypnosis .  A more effective treatment may be obtained by combining these therapeutic modalities , but this needs further study
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 .