How does Viagra work?

For millions of men that are suffering from erectile dysfunction the fact that Viagra works is the only thing that is important to them, how it works is somewhat secondary. However, Viagra is a prescription drug that works by increasing blood flow to the penis and when a man is sexually stimulated Viagra helps the penis fill with enough blood to cause an erection, when sex is over, the erection goes away.

It is important when buying Viagra to ensure that you are buying only the genuine Pfizer medication, there are lots of fake drugs that claim to be Viagra but these can be very dangerous to a man’s health. Buying Viagra can be safe, convenient and affordable, so only buy from a trusted online pharmacy.