Viagra is the most recognizable name for the drug sildenafil citrate.Generic Viagra is developed for one reason only - to treat male ED. It always comes as a blue pill in 25mg, 50mg, and 100mg dosages. Although it's purchasable only by way of a doctor's prescription, you are able to order Generic Viagra online if you choose so.The drug Generic Viagra was not even planned to treat what is so widely famous for now, originally. It was created in the 1990s for the function for treating a form of heart condition known as angina pectoris. It didn't work properly for the purpose it was created, however, investigators of this drug found an interesting side effect of the drug at men who were trying it. It consistently stimulated erections.They had a golden mine on their hands and they knew it. It was patented in 1996 with the intention of developing as a drug for erectile dysfunction. By 1998 it had passed the necessary tests for FDA approval, and was presented to the world where it was received with open arms and legs.
ED is a very common disorder in adult men, and is caused by a number of factors. A lot of the common causes behind male ED are mental in origin, and a lot are equally based on physical abnormalities. The big majority of adult men will notice that they have some troubles getting or sustaining an erection at a time, even though they may be perfectly healthy.

These are the examples where has been very effective...

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