Viagra is by far the
most recognizable brand name and for the drug sildenafil citrate. It is produced and marketed by the pharmaceutical giant Pfizer, and is also sold under the name Ravatio and Caverta in certain locations throughout the world. Viagra is produced for one reason and one reason only, to treat erectile dysfunction, or as it's more commonly known, eD. It comes in the form of a blue pill in 25mg, 50mg, and 100mg dosages. Although it is available only by way of a doctor�s prescription, you can actually buy Viagra on the Internet if you so choose.The
drug Viagra wasn't even intended to treat what is so widely known for now, in the beginning. It Was designed in the 1990s with the for the purpose of treating a form of heart disease known as angina pectoris. It didn't work for the purpose it was intended, however, researchers of the drug noticed an interesting side effect of the drug at those who are testing it. It consistently induced erections.The
y had a gold mine on their hands and they knew it. It was then patented in 1996 with the intention of development as a treatment for eD. By 1998 it had passed the necessary tests for FDA approval, and was released to the public where it was received with open arms and open legs.e
rectile dysfunction is a very common disorder in men, and is brought about by any number of factors. Some of the most common causes behind eD are psychological in origin, and some are equally based on physical abnormalities. The vast majority of men will find that they will have some difficulty getting or maintaining an erection at at one time or another, even though they may be perfectly healthy.The
se are the instances where Viagra has proven to be very effective indeed. Some cases of eD can be caused by damage to the nervous system, diabetes, or hypogonadism, and in these cases Viagra may not be effective. If a doctor you to effectively screen new officers of questions to see if it can help you payViagra is classifie
d as a PDe5 inhibitor. Pretty fancy name isn't it? PDe5 causes a compound called cyclic GMP or cGMP to degrade. Since cGMP causes the arterial smooth muscles in the penis to relax, which will then allow the penis to become engorged blood which is how an erection is created. Stopping or restricting the action of PDe5 will result in penile erections if the individual has an otherwise clean bill of health. Some other PDe5 inhibitors available today include Levitra, and Cialis. You have probably heard of all of them because they advertise very aggressively for this lucrative market.Viagra is not without side
effects and some of them include headaches, stomach upset, flushing, and sweating. Viagra has been reported to also cause blurred vision in some cases, and in some rare cases have actually been reports of temporary blindness. Viagra should not be taken in conjunction with drugs designed for angina pectoris, combination can cause a serious drop in blood pressure that may be very dangerous. even though it is available on the internet, it is always wise to consult a qualified physician before taking any drug, including Viagra.
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