There is evidence to suggest that Panax Ginseng may have an effect on erectile dysfunction but authors of recent systematic reviews also stated that the quality of the studies didn't allow to them to make definitive conclusions. A review in the Cochrane Database found that ginseng may have a trivial effect on erectile function. The authors also noted, that no study has compared ginseng to common medications used for ED. Be sure to talk with your healthcare provider about treatment options for ED.