Safety and efficacy of an extract containing Panax ginseng (ginseng) and Lepidium meyenii (maca)

INTERVENTION: An extract containing ginseng and maca is administered for 8 weeks. Placebo tablets are administered for 8 weeks. CONDITION: Erectile Dysfunction PRIMARY OUTCOME: The primary endpoint is evaluation of safety as phase I trial. An evaluation of adverse events. SECONDARY OUTCOME: Efficacy for erectile dysfunction as phase II study. Effects on subjective well‐being and erectile dysfunction were evaluated with the International Index of Erectile Function (IIEF‐5). INCLUSION CRITERIA: ‐ Age: more than or equal to 20 years at the time of providing informed consent ‐ Healthy individuals or male subjects with mild to moderate ED, erectile dysfunction. ‐ Individuals who have never experienced psychological and critical diseases. ‐ Individuals who have the ability to provide written informed consent.