Purchase Sildenafil Citrate
Sildenafil citrate is the drug that is sold under the name Viagra, used to treat men who suffer from erectile dysfunction. Erectile dysfunction is when a man is incapable of achieving an erection while sexually aroused or incapable of maintaining an erection whilst engaged in sexual intercourse or intercourse. The condition is caused in the majority of cases by pre-existing medical problems, such as diabetes, high cholesterol levels or high blood pressure. Psychological issues like depression and anxiety can also often manifest themselves as erectile dysfunction. Many men who suffer from erectile dysfunction purchase sildenafil citrate in the form of Viagra to enable them to achieve lasting erections.
When a man is sexually aroused an intricate set of chemical reactions occur on a molecular level. These reactions lead to the arteries and blood vessels of the penis dilating which increases the blood flow into the corpa cavernosa, the tissue running the length of the penis shaft. The increased blood flow engorges the corpa cavernosa and cause the penis to stiffen in to an erection. For men with difficulty achieving this on their own, a sildenafil pill can help.
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A man suffering from erectile dysfunction cannot get or keep an erection due to insufficient blood flow to the corpa cavernosa. This is due to the constriction of the arteries and blood vessels by the natural enzyme phosphodiesterase type 5, more commonly referred to as PDE5. PDE5 as a vasoconstrictor acts on the cells that line blood vessels and causes them to contract. In order for a man to get sildenafil citrate no prescription is required for many online pharmacies.
Sildenafil citrate is what is known as a PDE5 inhibitor, which renders the PDE5 enzyme inert. With the enzyme deactivated the blood vessels and artereies are able to dilate which increases the blood flow to the shaft of the penis, causing an erection. The erection caused as a result of taking sildenafil citrate will last around two to four hours or until the man has ejaculated. The drug will only take effect when the man is sexually aroused as the PDE5 enzyme which the sildenafil citrate acts upon is only present in the blood when the man is sexually aroused.
Sildenafil citrate has been available for men who suffer from erectile dysfunction as Viagra for many years and millions of men every year chose to purchase sildenafil citrate to help with erectile dysfunction. It is now possible to purchase sildenafil citrate without a doctor’s prescription; men can also now purchase sildenafil citrate from online pharmacies and websites as well as through doctors or local pharmacies. Viagra without prescriptions needed makes medication more readily available for men who need it.