Sildenafil
Healthy psychological mind gives birth to healthy physical state. Impotence is one of the most serious health issues these days. Almost every man suffers from erectile dysfunction in some stage of his life. Pfizer pharmaceuticals launched Viagra in 1998; it is since then that the oral treatment of Viagra is sought as recommended by the specialists very confidently. Viagra cures impotence as well as enhances libido as per its recreational usage.
The medicine of Viagra is one of its kinds to hold up its place in the modern pharmacy where competition gives birth to success. Sold in millions every week, the medicine of Viagra poses no potential threat to a normal person’s health if acted as advised by the physician.
Chemically, Viagra is composed of sildenafil citrate which, in the beginning, was being investigated for its efficacy in curing hypertensive complications and high blood pressure till if was discovered by the scientists of Pfizer pharmaceuticals that sildenafil impacted sexual performance of men profoundly. Sildenafil Citrate belongs to a class of PDE5 inhibitors. It blocks the degrading action of phosphodiesterase type 5 thus protects cyclic guanosine monophosphate from being degraded. cGMP is a nucleotide that is produced by an enzyme called as gyanylate cyclase after nitric oxide, that is released from the vascular-wall or endothelial cells under sexual stimulation, acts on it. The resulting cGMP of the whole chemical cascade is responsible for relaxing the vascular smooth muscle cells to distend the vessel. Distended penile vessels make up more room for the incoming blood to the penis. Engorged blood vessels in turn fill up the spongy erectile organs called as corpus cavernosa. Erection further stops the venous blood outflow by collapsing the superficially located penile veins. Ultimately, erection occurs under sexual stimulation. However, ingestion of the drug with no sexual stimulation would not cause erection unless stimulated.
Viagra comes in 25, 50 and 100 milligram blue colored tablets of diamond shape. Pfizer is engraved on one of its side with the corresponding dosage strength on the other. Viagra has become popular in every adult community as a potent sexual enhancer. It is popularly known as ‘the blue pill’. The blue pill is capable of giving an extraordinary erection time of four hours.
The method of its oral administration is simple. It should not be taken before an hour prior to sexual interaction. The medicine is best advised to be taken once a day and no more. Over dosage of Viagra could cause fainting and fatally disastrous hypotension. Physicians start with the proscription of 25mg tablet and increase gradually if the previously administered strength of Viagra remains ineffective for that particular individual. Old men with circulo-vascular complications are advised a safe strength of not more than 25mg of Viagra once in 24 hours. Do not take them medicine without doctor’s consultation if you had renal of hepatic complication back in recent years. Consult your physical fully to help him diagnose the cause of your impotence.
Like any other drug, Viagra also causes side effects such as nausea, nasal congestion, flushing and reduced hearing. Sildenafil also seen to affect PDE6 due to with it poses possible visual side effects such as cyanotic vision and blurring. Nitrate drugs are strictly prohibited from their co-administration along with Sildenafil as it would cause aggressive hypotension.
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