Ginseng is famous as an energy booster, but it could also be a potential aid in treating erectile dysfunction. Red ginseng, also called panax or Korean ginseng, has shown in clinical trials to improve erection parameters such as penile rigidity, girth, and duration of erection; improved libido; and patient satisfaction. Doses were 900 mg three times daily. It might help you have both the energy and endurance for fun between the sheets.