All you need to know about Viagra.

Though it is generally assumed that Viagra is the oral treatment of choice for erectile dysfunction, just how well we know this drug remains to be seen?

Is it that what we know about Viagra tablets is that the magic blue pills only work when a man is sexually stimulated? Or that a lot of people still buy Viagra online with no prescription from the numerous internet sites that offer the drug for sale, despite knowing that the availability of the magic pills is on prescription by a qualified medical practitioner.

Whatever the case, however, anyone who plans to buy Viagra tablets should endeavour to learn more about the drug as this would help to understand better the implication of one’s action.

One thing one should bear in mind before buying Viagra tablets is to try and figure out if one’s reason for taking such an action is because he is actually suffering from ED.

What does ED mean?
When one is suffering from ED, it is generally assumed that one cannot achieve or sustain a rigid erection. According to statistics, one out of every ten men suffers from one degree of ED or the other and, physicians opined that about 90 percent of the cases of ED have underlying medical causes, most of which are treatable by therapy.

How does Viagra treat ED?
Sildenafil citrate is the active ingredient in real Viagra tablets, and works by enhancing the flow of blood to the penis. A potent inhibitor of phosphodiesterase type 5 (PDE 5), sildenafil exhibits its erectile ability through the release of nitric oxide (NO) into the corpus cavernosum of the penile muscles. The PDE 5 is a chemical that is mostly concentrated in the penis. Its inhibition is an important step in the erectile process because the levels of cyclic guanosine monophosphate (cGMP) are raised through this way. The raised level of cGMP allows for the relaxation of the smooth muscles (vasodilation) and erection.

What is the optimum time to take Viagra tablets?
Ideally, Viagra should be taken when the stomach is empty, or about an hour before engaging in sexual intercourse. However, Viagra, when taken shortly after a high-fat meal, would normally be poorly absorbed into the system, thus reducing the efficacy of the drug. As already known, Viagra tablets only work when a man is sexually stimulated, and are recommended to be taken in a single daily dose.

A man who, however, takes the drug in the event of a sexual interest failing to appear should not despair. Viagra tablets are naturally eliminated from the body within a 6 to 10 hour span.

How successful is Viagra?
It is on record that Viagra has achieved as high as 60 to 70 percent success in bringing rock-hard erection for men who have used it.

However, the drug would not be as effective for men whose ED were caused by diabetes and prostrate surgery – both situations that might have compromised the vascular and nerve systems.

In some cases, Viagra tablets could produce partial erection with stiffness that is not acceptable, or the drug may not work at all in some men. In addition, any man who is on alpha-blockers – hypertension drugs and medications for benign hyperplasia – may have to be started off on a lower than usual dosage – while also taking the drugs four hours before taking Viagra tablets.

Finally, because Viagra tablets can react with certain drugs to trigger severe side effects, the drug is contraindicated for nitrate-containing compounds like nitroglycerine. Common side effects include headache, indigestion, facial flushing, etc.