VENICON Natural Viagra. Strong sex stimulant for men. Contains 2 blue pills which will make sure that you will have an erection when you are excited. It works for 3 to 4 hours. Take one or two and see what you can do! Each tablet Contains: 250 mg L-Argenine; 50 mg Epimedium extract; 50 mg Catuaba powder; 125 mg Gingko; 10 mg Niacin and 35 mg Yohimbine.