The article is about “Viagra” and other medications for those persons who want to buy viagra. There were 3 most significant findings in the world medicine: X-rays, penicillin and sildenafil. It was created under the term of “Viagra”. People that researched penicillin and X-rays were given a Nobel Prize. And in autumn of 1998 the same reward was adjusted to the researchers of sildenafil. The earliest researches started in 1992. It happened in the city with the name Sandwich, Kent, where “Pfizer” corporation had its lab. Sildenafil citrate was a fresh medical substance and the researchers made experiments with it. They were making medicine from different heart sicknesses. The researches expected that sildenafil citrate would aid the increment of blood pressure to heart muscle and diminish arterial pressure. The researches showed unexpected results. There was too bad efficacy on myocardial and arterial pressure that it couldn't be use as this kind of remedy. It was also mentioned that those masculine patients who were under the experiments didn't give the remedies back. All the tested people had the similar motive for leaving the medication with them. Everyone was speaking about the betterment of the erection quality. The cause was in the sildenafil influence. It wasn't definitely good in extending blood circulation within cordial muscle but it increased it in male reproductive organs. This marvelous trait of the substance was remarked by “Pfizer” researchers and they started new experiments with sildenafil. They could identify in it a strong remedy for the erectile malfunction fight. The given term was “Viagra” that determined the power of Niagara Falls and the word power itself in wonderful mixture. With the assistance of our business firm you can simply have cialis super active. In 1993 long medical experiments that were needed for confirmation of “Viagra” features have started. The traits of the great safety and impotence treatment were conformed during these tests in the laboratories of “Pfizer” corporation. “Viagra” was endorsed after all the researches by Food and Drug Administration in the United States on March 27 1998. 3000 people at the age of 19 to 87 were tested on the drug worldwide and gave marvelous results. They have selected people that had erectile malfunction for 5 years at average. Also they had various types of malfunction as inherent, psychic and mixed. The results of these experiments show that “Viagra” is effective for the renewal of erectile function. It increased the efficacy of copulation in overwhelming majority of situations, esp. with persons who suffer from diabetes. But we should say that there is no such a medication in the world that may assist everyone in all cases. Sildenafil is not a panacea. It has wonderful outcome but a plenty of persons still couldn't receive the help they wanted of it. If you want to rid yourself of the erectile dysfunction, inform us and we'll assist you in it.