Viagra is the best drug for treating erectile dysfunction or male impotency. This drug was approved by the FDA in almost twelve years ago. Viagra has remained popular in the market due to its few side effects and an affordable price. Most of the people with impotency problem have thought of purchasing for Viagra but they fear it since some of its information I still not clear to them. Before you start using Viagra, it is important to carry out a thorough research concerning its price its effects, its usage and dosage among others. Generally, Viagra was introduced in order to help men who suffer from erectile dysfunction though today it can be used by women as well.


An erection can only be caused by a growth of blood in the penis. When Viagra is taken, it enables the penile muscles to relax and hence allows more blood to flow into the penis. This will force the veins which carry blood out of the penis to be restricted hence less blood will be flowing from the penis. With more blood flowing into the penis and less blood out of the penis, the penis will be forced to enlarge and stiffen hence an erection is caused. Viagra is taken through the mouth with food or without food at least sixty minutes before sexual intercourse. The dosage of Viagra is decided by your doctor depending on your condition and age. It is advised that you inform your doctor before you stop taking Viagra.

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