Generic Viagra are generic versions of brand name Viagra. These are drugs that have the same chemical, have sildenafil citrate, Viagra as mentioned. Dosage, effectiveness and content are all the same, except for generic Viagra is cheaper than the brand-name counterparts. When you buy generic Viagra, you save almost 5 times! 20 doses of Viagra costs about $ 125 to $ 200, but generic Viagra is only $ 200 more than 100 doses.
Since most doctors can tell you there is no difference between the use of generic and brand drugs – except the price you pay for. Brand name drugs are expensive because the price is put up the cost of research and development of the drug to cover. Generic drugs do not have this disadvantage, since the cost was borne to the development of the drug by another pharmaceutical company. All other company have to do is to copy the process and they can a cheaper version of the same drug network. Of course, the original manufacturer of the drug patents filed, which prevents other companies produce the same drug unless the drug has expired.
As a Pfizer patent on Viagra will expire?
In some countries, like Brazil, you can already buy generic Viagra in June of that year. This is induced after a ruling by the Supreme Court of Brazil saying that Pfizer’s patent on the drug, when the company first filed in June 1990 against Pfizer’s claim that started the drug, the patent only in closed in 1991.
Mechanism
Sildenafil citrate works by blocking PDE5, an enzyme responsible for reducing the production of another substance in the body, cyclic guanosine monophosphate which in turn increases blood flow by relaxing smooth muscles of the body. Relaxes the smooth muscles leads to vasodilation, leading to an increased blood flow to the penis – and thus erection.
Dose of the drug
Sildenafil may 25, taken 50 to 100 mg tablets. It should only be taken once a day between 30 minutes to 4 hours before intercourse.
Side effects and contraindications of the drug
Side effects of the drug include headache, colds, digestive problems, some form of flushing or redness of the face, and eye problems such as blurred vision, loss of peripheral vision and Zyanopsie. Less common side effects may occur, such as hypertension, heart attack, stroke, priapism hearing loss and the like. Priapism is a condition where the penis does not return or limp back to the presence of physical stimulation was removed, or after sexual activity is completed.
If you want to buy generic Viagra, you should consult your doctor, because some substances can not be taken together with sildenafil citrate. These substances include nitric oxide or organic nitrates such as nitroglycerin, sodium nitroprusside, amyl nitrite or better known as “poppers.” Protease inhibitors used to treat HIV also inform their physicians since protease inhibitors can greatly extend the duration and severity of side effects.
If you could suffer from erectile dysfunction for a while now, it’s time to do something about it, a urologist and if you are not only willing to acquire, on the theme you choose for Viagra Professional Chat questions. You can also look at Viagra from India
