Your question implies that think Viagra is some type of vitamin supplement that you should take to enhance your health. Not so! Viagra is a drug that is prescribed for men with erectile dysfunction. The drug is not designed for recreational purposes.If you have erectile dysfunction, see a urologist right away. Erectile dysfunction in a man as young as you are may be a warning sign that you have a medical condition.Taking a drug that masks the symptom rather than getting to the bottom of the problem is not wise.