Generic Viagra is one of the best tools that a man has against erectile dysfunction and also a little less painless. The other options are surgery (for cases such as Peyronies Disease) and injections that are painful. Both these options are also extremely expensive. Generic Viagra proves to be the best bet that a man has against erectile dysfunction. Unlike surgeries and injections, it is cheaper and painless. In fact, the man is wise, he can choose the flavor of Generic Viagra that he desires. So the whole treatment process becomes far more enjoyable and fast.

Generic Viagra bioavailability

The amount of Generic Viagra (sildenafil citrate) that is absorbed in the system within half an hour is 40 %, which is known as its bioavailability. This is the pharmcokinetic reaction, i.e. what the drug does to body. The 40 % of this sildenafil citrate is sufficient to increase the circulation of blood in the pelvic region. This vasodilator is able to bind with the proteins in the body and bring about the said action.

The half life of Generic Viagra is 3 to 4 hours. This means, that in 3 to 4 hours, more than half the drug is still present in the circulation. This keeps men active. After the stage of this half life is passed, Generic Viagra starts getting excreted out of the body through feces and urine.  Given 6 hours, the male reproductive organ goes back to its initial, inactive stage as the percentage of Generic Viagra present in the blood is below the half life. But men cannot repeat the drug for the next 24 hours as they can suffer from side effects. The low percentage may not make the reproductive organ hard but it can have severe side effects on the heart.

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