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Viagra On Line

 


Most of us have heard of Viagra as a successful drug in treating Erectile Dysfunction (ED) in men. Anyone who has suffered from ED even slightly must have thought of using it. Your disorder could range from the mildest to the very severe. This can cause stress between you and your partner. To lead a stress free life you could consider trying viagra.

Since socially ED is considered to be a taboo subject, many sufferers prefer not to make their disorder known. They prefer to purchase viagra on line. However, you should remember that it is a medical condition like any other and never feel embarrassed by it. Whichever way you decide to buy it, please consult a doctor to find out how safe viagra is for you to use.

What is Viagra?

The Sildenafil citrate is produced and sold under the name of Viagra by the pharmaceutical giant, Pfizer. It is prescribed to cure erectile dysfunction and pulmonary arterial hypertension. These diamond shaped blue pills have nicknames like "Vitamin V" and "the Blue Pill". In the market its main competitors are Cialis and Levitra.

The History of Viagra

Teams of chemists in the Pfizer research center were studying the sildenafil compound for use in treatment of hypertension and angina pectoris. After the initial trials it was found to have negligible effect on either of these. However, it was found to be successful in inducing erections. Thus, Pfizer decided to synthesize sildenafil and produce and sell it as a drug to treat ED. It was patented in 1996 and approved for use by the FDA in 1998. This was the first pill to treat erectile dysfunction and became an instant success. Many sites also sell Viagra on line.

The Way Viagra Works

Physiologically, erection involves the parasympathetic nervous system in releasing nitric oxide in the cavern of the penis resulting in increase levels of cyclic guahosine monophosphate (cGMP). This further leads to relaxation of muscles in the cavern, increased blood supply to the penis and an erection. Since the sildenafil molecule has a similar structure as the cGMP, the use of viagra results in more cGMP and better erections. The sildenafil is excreted by both liver and kidneys.

Dosage and price

The dose is to be prescribed by a licensed doctor. Generally 25mg to 100mg of the drug is prescribed once a day and about 1 to 4 hours before sexual intercourse. The drug is sold in three dosages of 25, 50 and 100 mg and costs about $10 per pill.

Contraindications and side effects

Viagra is not to be used by people, who are at a risk of heart failure due to sexual intercourse, in decreased liver function, impairment in renal function, hypotension, in cases of recent heart attack and in genetic disorders of the retina. The side effects include priapism, hypotension, myocardial infraction, ventricular arrhythmias, sudden death, stroke, sneezing, headache, dyspepsia, palpitations and photophobia. Patients of HIV taking Protease inhibitors should also be careful in using sildenafil.

Since people do not want to admit in public that they suffer from ED, most people prefer to buy viagra on line. However, since sildenafil has serious side effects, it is necessary to consult a doctor before buying this drug online. Your embarrassments should not blind you to the fact that ED is a physiological disorder. Ideally only after the doctor thinks you are safe in using it, you should place an order.

When you decide to buy viagra on line you usually have to fill in a questionnaire regarding health risks involved. For the sake of your health it is advisable to fill in the form truthfully. Buying viagra on line is an easy way towards solving your problem but do so with all the information in hand.


   


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