Testosterone supplementation not linked to heart attacks in study, reversing earlier finding

Testosterone supplementation in men with low levels of the hormone did not increase the risk of heart attacks in a 5,246-patient study, allaying fears that were raised more than a decade ago in a smaller trial, researchers said Friday.

Although the results ease a significant safety concern about testosterone-containing gels and patches, the researchers running the study emphasized it does not address the more widespread use of such products in men who have normal levels of testosterone but who hope to avoid signs of aging or to increase virility.

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