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Medicine intended to treat sexual impotence in men (erectile dysfunction). Patients taking VIAGRA® have experienced heart attack, sudden death, irregular heart rhythm, stroke, chest pain, and increased blood pressure.

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How Viagra® Been Discovered To Treat Erectile Dysfunction

How Viagra® Been Discovered To Treat Erectile Dysfunction
By Richard Richard
How Viagra® Been Discovered to Treat Erectile Dysfunction
Sildenafil Citrate was originally developed to cure pulmonary arterial hypertension. It was during the testing of the product that test groups noted the drug was giving them erections. It was this side effect of Viagra® that encouraged Pfizer to develop the most popular drug in human history.
Although it would be unfair to compared penicillin and Viagra® in the same breath, but the truth is that Viagra® as a drug is perhaps the most purchased medicine in human history. Every year millions of dollars worth of Viagra® is sold over the counter and on the Internet.
Chemically Viagra® is Sildenafil Citrate, and the drug works by improving the blood circulation in the muscles that are responsible for erections (corpus cavernosum). Unlike other scheduled drugs Viagra® does not require a doctor’s prescription and can be purchased over the counter in most countries the world over. In the US however a person requires a prescription to purchase Viagra®, and over the counter selling of Viagra® is illegal in the US.
Since Viagra® was initially developed as a drug to cure hypertension, in people not suffering from PAH (pulmonary arterial hypertension) Viagra® does have a few side effects. The first side effect of Viagra® is that it lowers the blood pressure, and it is possible for a person to overdose on Viagra® (in fact this is why it’s a prescriptions drug). In rare cases Viagra® can also impair liver function, however by and large Viagra® if used judiciously is free from harmful side effects.
Viagra® tablets are available in three doses 25mg, 50mg and 100mg. Depending

on the dosage a patient is usually advised to take a pill 30 minutes to 4 hours before sexual intercourse. Another common misconception is that consuming Viagra® alone can give people erections; this is not the case just like a normal erection mental and physical stimulation is also important.
Viagra® is one of the leading drugs in treating erectile dysfunction, and the mechanism of action is a little too complicated for the scope of the article. But by and large if a person is not suffering from any physical failure in the corpus cavernosum Viagra® can help people enjoy a healthy and normal sex life.
There are also other drugs available that hope to become alternatives to Viagra®. Two such drugs are Cialis® and Levitra®. No matter what drug one uses it is always advisable to consult a physician before using Viagra® as some people can be at high risk by using Viagra®, a good example is people that are undergoing treatment for hypertension.
In the UK Boots Pharmaceuticals is expected to run a trial allowing purchase of Viagra® over the counter after consulting a certified pharmacist. Today one of the convenient ways of buying Viagra® is Online, all a user has to do is log on to a licensed online pharmacy website like www.hyenaonline.com and fill out a consultancy form. Orders will be processed and shipped quickly upon approval.

Richard is the author of this article on viagra. Find more information about cialis here.

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