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Generic Viagra is used to treat male Impotence also known as Erectile Dysfunction. Also, it has been approved by US FDA for treating pulmonary arterial hypertension.






Viagra and erectile dysfunction.


In April 1998, the drug sildenafil citrate, widely known under the brand name Viagra has been approved for clinical use. This point not simply became the starting point of the new drug on pharmacological market. It was the beginning of a new era in the field of sexual medicine, marking a breakthrough in fundamental and clinical areas, as well as the public perception of sexual pathology. Due to its superior advertising, Viagra remains the most popular medicine for curing erectile dysfunction even after invention of its cheaper and in some cases even more effective competitors such as Levitra or Cialis. The main con of using Viagra compared to these preparations is a lesser period of working - in the case of Viagra it is only 4-5 hours, while Cialis lasts for up to 36 hours, which is a lot more convenient.


Viagra is a drug for increasing the potency and impotency treatment. Its action is as follows: the blood vessels of the penis expand, which in turn leads to increased blood flow and the onset of an erection. But at the same time, it acts only with sexual arousal. Viagra has a number of advantages in comparison with injections in the sexual organ or other procedures aimed at treatment of impotency.


Viagra is a convenient way to restore potency when it is necessary, without resorting to medical assistance. But this is not always without consequences. Viagra helps only if the reduction of potency is associated with psychological problems. But if the cause is hidden in physiological disorders, the drug will not be able to eliminate the disease.


The efficiency of sildenafil as well as its safety were tested in various randomized studies lasting up to half a year in three thousands patients aged from 19 to 87 years, with erectile dysfunction of different origins. Efficiency was estimated by using diaries of erections, International Index of Erectile Function (validated questionnaire on the status of sexual function), and survey partner.



The usefulness of sildenafil, providing the ability to achieve and maintain an erection necessary for satisfactory sexual intercourse, has been proved by all the observations, and has been confirmed once again in long-term studies lasting for one year. After using a fixed dose of this medicine(respectfully 25, 50 and 100 mg), patients who claimed that the preparation improved their erection was 62%, 74% and 82% as compared with 25% in the placebo group. On top of that overall analysis shows that sildenafil not only provides stable erections but also improves the quality of orgasms as well as general satisfaction from sex. Of course, there are a lot of contraindications, including:

  1. allergic reactions to components of the drug;
  2. sicle-cell disease-cell anemia;
  3. multiple myeloma;
  4. disease or deformation of the penis;
  5. leukemia;
  6. diseases, which are accompanied by bleeding and stomach ulcers;


Besides, the drug should be taken with care by people who are prone to cardiovascular diseases. Scientific studies have shown that the drug can cause thrombosis. But it is worth noting that these tests were carried out on the blood cells. Therefore, it's too early to say about scientific evidence of Viagra influence on blood clots.


The uncontrolled use can lead to sterility in men. Indeed Viagra is an affordable tool that is often used by healthy young men only, in order to enhance the sexual feelings and to increase the number of sexual intercourses. As a result, the dependence on the drug and the impossibility of having erection without it.


The following side effects may occur when taking Viagra:

  1. Headache
  2. nasal congestion
  3. facial redness
  4. vision changes
  5. respiratory disorders
  6. noise in ears
  7. irregular heartbeat


Effects on ability to drive or to perform work requiring higher rate of physical and mental reactions. While taking sildenafil none negative impact on the ability to drive a motor vehicle or other technical means were observed. However, since when taking sildenafil may decrease blood pressure, as well as cause blur in the eyes and other side effects, one should be attentive to the individual action of the drug in these situations, especially at the beginning of treatment and when changing the dose regimen.