Viagra wiki:

How does Viagra work? What does Viagra do to the body?


What Does Viagra do?

The earliest known instance of ED medication is mentioned in the Kamasutra. It suggests a mixture of sparrows’ eggs boiled in milk, clarified butter, and honey, which is supposed to work as a sex stimulant for men. Science has come a long way from sparrows’ eggs ever since an oral medication by the name of ‘Viagra’ was developed at Pfizer Laboratories accidentally in 1989.

What is Viagra?

Viagra is one of the popular trade names of sildenafil citrate (C22H30N6O4S). It is a prescription medication used in treating erectile dysfunction and pulmonary arterial hypertension.

Viagra was discovered by accident in Pfizer laboratories by Andrew Bell, David Brown and Nicholas Terrett who were working with sildenafil to explore its potential in treating multiple cardiovascular diseases. Sildenafil, as a drug, has the ability to lower blood pressure. However, test subjects who had volunteered to take the drug for R&D purposes, later literally refused to give it back because the side-effects enabled them to have better erections. After meticulous research, the drug was patented and then allowed for use by Food and Drug Administration on March 24, 1998.

How does Viagra work?

So, what does Viagra do and how does it work? In order to answer these questions, let’s try to get a better understanding of how human penis functions and how erection occurs.

The physiological mechanism of an erection involves the internal secretion of nitric oxide (NO) into the body. NO initiates the enzyme guanylate cyclase. This correspondingly increases secretion of cyclic guanosine monophosphate (cGMP). cGMP induces muscular relaxation thereby dilating or expanding the blood vessels to allow increased blood flow.

Viagra or Sildenafil citrate stimulates the catalytic effect of NO by inhibiting phosphodiesterase type 5 (PDE5); PDE5 is responsible for the degeneration of cGMP in the penis. Thus, by creating more cGMP, more blood can flow into the penis and remain there for longer periods of time thereby aiding and extending erections.

What does Viagra do to the body?

Viagra stimulates and enhances erections. It can thus be used as a remedy for erectile dysfunction (ED) in men. Viagra will only work when there is sexual stimulation involved. Without sexual stimulation, it is useless due to the fact that it is only a secondary inducer.

The effects of Viagra vary among individuals based on multiple factors. Average time to the onset of effect of Viagra in individuals with ED ranges between 20 and 45 minutes.

Brand-name Viagra is available in the form of 25 mg, 50 mg and 100 mg diamond-shaped blue colored tablets. Studies on test subjects suffering from ED with an age range of 18 to 87 provided exemplary results. Each tablet provided positive results in 63%, 74% and 82% of the cases respectively on an increasing dosage scale characterized by improved erections.

Dosage

The patient can take no more than a single pill maximum within a 24-hour timeframe which is to be ingested 30 minutes to 1 hour before sexual intercourse. The usual starting dose is 50mg, which can, nevertheless, be increased or decreased depending on the patient’s medical history.

Side effects of Viagra

So, what does Viagra do and are all of its effects positive? Even though this medication is considered to be one of the best means of treating erectile dysfunction, some of its effects can be very unpleasant, putting it mildly. Fortunately, the latter effects are experienced only by a tiny fraction of the patients.

Serious side-effects
- Bladder pain
- Priapism
- Burning sensation in chest or stomach
- Itching and numbness
- Cloudy urine, increased urination with pain
- Upset stomach
- Abnormal vision
- Bone pain
- Hearing loss
- Scaling or peeling of skin
- Excessive hunger
- Faintness
- Severe headaches
- Nausea
- Nasal congestion

An occurrence of one or more of these side-effects to any individual requires medical supervision – and more serious side effects from the list above such as priapism, vision and hearing abnormalities, chest pain, once experienced, require immediate medical attention.

Cialis Online

What Is Cialis? Sooner or later there comes such a sad situation in the life of any man, when because of some reason he can’t achieve an erection. This may be connected with a plenty of negative factors in the life of a man, physiological ones as well as psychological. What is modern life? Stresses day and night, bad habits, unhealthy food, sedentary lifestyle, use of alcohol, contaminated air – nothing from this list adds power to male health. As a result, a lot of age-related changes are perceived by us as natural, but are not natural at all and appear because of the lack of care about our health. Sexual health of a man is extremely vulnerable, unlike a lot of people think, and it is not surprising that any drug developed for the treatment of erectile dysfunction that enters the pharmaceutical market immediately draws attention to itself.

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Cialis Dosage

What A Drug Is Cialis? Cialis is a well-known drug used for the treatment of erectile dysfunction. It is not so popular as Viagra, because Viagra was invented earlier and got itself all the glory of the best drug against ED in men. However, such a situation is far from justice, because the effect of Cialis is even better, and the drug has got considerably less contraindications and side effects. Thus, it is much safer in use.

Nowadays, more than one hundred millions of men all around the world suffer from erectile dysfunction – and these are only those men who reported about their intimate problem to the doctors. The number of those who consider it impossible to consult with anyone about their intimate health is immeasurably more. In general, according to the estimates of the scientists, almost every third man in the age between 35 and 50 years old sometimes experiences problems in the intimate sphere which can be called temporary or permanent erectile dysfunction. For men older than 50 years old this figure increases up to every second man.

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Viagra Without Prescription

Viagra And Erectile Dysfunction. What is the most important and at the same most vulnerable part of a man’s body? What should be an object of pride, but sadly often becomes a source of disappointments? The answer is obvious: penis and potency. It doesn’t matter what is the nationality of a man, color of his skin, how old he is, what religious beliefs he has, is he heterosexual or gay, - any adult male person strives for a good erection. A man feels defective when he has potency problems. There can be hardly found anything which would hurt a man’s pride so much as erectile dysfunction. Sadly, nowadays erectile dysfunction is the most wide-spread sexual pathology of the representatives of the stronger part of humanity. The modern rhythm of life obliges a man to much: he has to work hard, make big money, go through a plenty of stresses, drive a car and get stuck in traffic jams, at last, live in the unhealthy atmosphere of a big city with all its emissions of harmful substances and pollution. We are not talking about everyday problems and inner conflicts in the family, with which each married man has to deal.

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Viagra from Canada

Viagra: Famous Blue Pills. When it comes to sex, especially if the talk is between men, sooner or later the discussion will turn to Viagra, to its effect on a man’s potency and success in the intimate sphere. This phenomena is not strange, because to date Viagra is probably the only medication the efficacy of which regarding male strength is not questioned. From this statement there comes a reasonable question: what is this famous Viagra and how does it influence potency of a man?

The explanation should be started with an excursion into history. In all ages people were searching for methods of increasing male power: desire, libido, erection. And if libido mostly depends on the natural temperament of a man and in his character, erection is a physiological process and it can be influenced easier than a trait of character. In addition, it is really very difficult to find a man who wouldn’t like to make his erection stronger, regardless of his religion, preferences in sex, matrimonial aspirations, age, moral qualities etc.

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