Viagra is a drug for the treatment of erectile dysfunction. Viagra acts on natural mechanisms of erection and helps a man to cause an erection. Viagra is used in men, suffering from erectile dysfunction of various origin (vascular and nervous disorders of erection).

Composition and available forms of Viagra

Viagra is available in 1 and 4 tablets in a packaging.

One Viagra tablet contains 25mg, 50mg or 100mg of Sildenafil citrate.

Viagra – information for patients

What is Viagra?

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Viagra drug is the first pharmaceutical drug which has a significant and reliable effectiveness in majority of men with erectile dysfunction. Viagra contributes to the natural respond of the body to sexual stimulation.

What is mechanism of Viagra action?

Viagra increases blood flow to the penis that helps a man to cause a natural erection. Viagra acts only on the natural mechanisms of erection and therein lies its undeniable novelty and secret of huge popularity.

What is the effectiveness of Viagra?

Viagra has a fairly high efficiency. Effectiveness of Viagra to a great extent depends on the kind of erectile dysfunction and related diseases. If in vascular erectile dysfunction Viagra is quite effective then in the presence of pathological venous drainage the results of Viagra use are much worse.

Does Viagra increase sexual desire?

Viagra action is based only on the local increase of blood flow in corpora cavernosa of the penis and it does not cause the increase of sexual desire. Viagra does not increase libido and is not an aphrodisiac.

Whom is Viagra indicated for?

Viagra is indicated for men, suffering from erectile dysfunction of various origin, including lesions of vessels or nerves of the penis. Exception is only a rough fibrosis of corpora cavernosa of the penis.

What specialists should I consult about Viagra use?

It is recommended to consult sexologist or urologist. It is also desirable to visit a cardiologist or therapist in order to prevent heart diseases. If you suffer from some chronic diseases you should contact the appropiate specialist.

How to take Viagra?

All you need is to take 1 Viagra tablet about 1 hour before sexual activity. Viagra action lasts 4 hours. It is better to take Viagra before food, as it will be act faster in this case. Effect of Viagra is that it should be taken only before sexual intercourse. Do not take Viagra more than once a day.

How to choose Viagra dose?

Viagra comes in three doses: 25, 50 and 100mg. As a rule, Viagra is administered in average dose – 50mg and then depending on the obtained effect, the dosage is adjusted. Another approach – to start the treatment with the minimum dosage, increasing it before the onset of good therapeutical effect.

How safe is Viagra?

Safety of Viagra

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was proved by clinical trials. Frequency of the treatment cessation due to side effects was comparable for patients who took the drug – 2,5% and placebo – 2,3%. However, it is known manifestation of some drug interaction, especially with nitrates, used in the treatment of heart diseases. That is why, Viagra is contraindicated for the patients who are taking nitrates (nitroglycerin, isosorbide dinitrate and isosorbide mononitrate). Any man who takes nitrates of any kind (nitrates are usually taken in angina  - chest pains, caused by heart disease) should not take Viagra. Danger is concluded in a significant decrease in blood pressure.

Who should take Viagra with caution?

First of all, people with severe diseases of the cardiovascular system: heart failure, angina, impaired cerebral circulation (heart pain during physical load or at rest, impairment of memory and mental performance) should carefully take Viagra but it is better to consult the doctor before the drug use. In this case you should consult the doctor about expediency of Viagra use. Patients, who have a predisposition to priapism occurrence are required medical supervision. People, who are going to operate with different kinds of mechanisms or vehicles should be very careful after Viagra taking, since approximately in 2% of men can occur passing change of color sensation with a predominance of blue colors after the drug taking.

How older men should take Viagra?

The only thing you should pay attention to – is a state of heart. We are talking about recurrent pain in the heart, caused by physical load – this can be climbing stairs or brisk walking. If you are really disturbed by pain in the heart during physical exercises, it is strongly advised to consult a cardiologist before Viagra taking.

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