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Vardenafil is a phosphodiesterase inhibitor or simply saying the drug that treats erectile dysfunction. It is the second drug of this kind after Viagra.

Many people have thought about buying this product but there are many aspects which are not clear for them concerning Viagra. That is why the purpose of this article is to clearly the state the most important things about the price, usage or secondary effects that Viagra implies.

Cialis and Viagra are two of the most popular, competing erectile dysfunction pills. They are both present on the pharmaceutical market to offer more possibilities to overcome ED to men who need them. Both have the same activity and efficacy, counter-indications and side effects. It depends on the preferences of the user, guided by his doctor, to choose the suitable pill.

Viagra (Sildenafil) is an oral drug for male impotence, also known as erectile dysfunction. Having been around for a lot longer, Viagra has a great safety track record and proven effects that start acting in 30 minutes and last for about 5 hours.