Viagra (Sildenafil)

Description

Highly effective drug Viagra, which was introduced in 1992, was a breakthrough in the treatment of sexual weakness of men. The discovery of this drug was made by the company of Pfizer for over 10 years. The existing active substance of Viagra is sildenafil citrate, which has a great effect of harder erections according to clinical studies.

A few years ago Viagra could be bought only on prescription, which gave a huge inconvenience. Today Viagra can bought without leaving home. It is enough to find the right online pharmacy, select the desired amount of drug, place your order, and within a few days you are guaranteed to get your order totally anonymously and at an affordable price.

Impact of Viagra on sexual desire

Viagra is not a medicine that increases libido, as an aphrodisiac, the drug’s effect is based on a local increase in blood flow to the cavernous bodies of the penis.

The mechanism of action of Viagra

After taking Viagra, at a dosage equal to one pill a day you may experience vasodilation in the pelvic region, thereby increasing blood flow to the genitals, which allows you to enhance or restore the lost of erection. It is understood that the erection does not arise involuntarily, but only in response to sexual arousal; and it is terminated in case of its absence. One tablet of the drug is taken in one hour before sexual contact, and continues its effect for 6 hours.

How effective is Viagra?

Numerous clinical studies that involved men from 20 to 65 years with different degrees of difficulty of erectile dysfunction, showed excellent efficiency of the drug, even when it is taken at a dosage of 50mg. But do not forget that the efficiency of Viagra depends on a kind of erectile dysfunction. In case of vascular erectile dysfunction Viagra copes with its task in 95% of cases, the pathological venous drainage of its efficiency does not exceed 50%. But it is worth noting that this type of dysfunction is extremely rare, approximately 5% of the total weight, of patients with this disease.

As any drug of synthetic origin, Viagra has quite an extensive list of contraindications. Do not use this medication if you are hypersensitive to its components. Men, who have abnormalities in the structure and development of the penis (e.g., cavernous fibrosis, angulation, Peyronie’s disease), are forbidden to take Viagra without a doctor. You will have to abandon the intake of this synthetic stimulant in case of leukemia, sickle-cell anemia, liver disease, exacerbation of peptic ulcer disease of the gastrointestinal tract, and internal bleeding. The drug is contraindicated to men suffering from severe forms of cardiovascular diseases: unstable angina, arrhythmia, heart failure, hypotension and hypertension.

Side effects and special instructions

As for the side effects that can be caused by Viagra, it is necessary to allocate decrease in blood pressure, tachycardia, cramps, dyspeptic symptoms, nasal congestion (rhinitis), and tides of blood to the penis (vasodilation). There may be dizziness, increased sensitivity to light, skin rashes. Some men have had a few fainting spells.

You should pay attention to the special instructions for use of the drug. The instruction for use indicates that this stimulant can not be taken together with medicines containing nitrates and nitrites, alpha – and beta-blockers, anticoagulants, barbiturates.

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