Medically reviewed by Matthew Wosnitzer, MD Erectile dysfunction (ED) is an inability to achieve or maintain an erection ...

Experts still don’t know how effective L-arginine supplementation is for ED. But limited research seems to suggest that it plays a role in combination with other ED drugs, such as: More research ...

For instance, L-arginine supports healthy blood pressure levels and helps treat erectile dysfunction. L-arginine is a vasodilator, meaning it can help improve blood circulation and bring more ...