Background This multicenter, randomized, double-blind, double-dummy, placebo-controlled trial primarily evaluated the efficacy of tadalafil once-daily (OaD) or on-demand ("pro-re-nata"; PRN ...

Horny goat weed is an extract from the epimedium grandiflorum plant, a flowering shrub native to Asia, Africa, and parts of ...

Women have taken to social media to share their experiences using testosterone. When Grayson Smith, a 23-year-old woman from Texas, started feeling sluggish and tired in the afternoons ...

Although erectile dysfunction (ED) is a common impairment among older men, its etiology is poorly understood, and cross-sectional studies concerning associations with modifiable behavioral risk ...

Testosterone doesn't fluctuate like female hormones, so the timing of tests isn't important. Testosterone is measured in nanograms per deciliter (ng/dL) or nmol/L. Testosterone Range (ng/dL) ...