What is Viagra? V*agra is a blue tablet containing the active ingredient sildenafil citrate. It is taken by men suffering from erectile dysfunction. It is taken approximately one hour before s*xual intercourse to help achieve and maintain an erection. Contrary to popular belief, V*agra is not an aphrodisiac; any man taking V*agra must be s*xually aroused to achieve an erection. Viagra is...