An even larger concern surfaced when reports arose of men having persistent side effects even after the medication was discontinued. A 2012 study in the Journal of Sexual Medicine attempted to determine whether the symptoms really could be long-lasting or irreversible. Fifty-four men under 40 who had continued sexual dysfunction despite a three-month cessation of finasteride therapy were reassessed at an average of 14 months. Ninety-six percent of these men continued to have persistent sexual dysfunction despite no further treatment with finasteride.
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