One of the most quoted examples of serendipity in the world is that of Viagra. Looking back at the last 20 years, researchers have realized that no other drug has enjoyed the sort of success that Viagra has. The blue pill has ensured that many pharmaceutical companies have laughed their way to the back by manufacturing its generic versoions. This wonder drug was discovered during a research that was being used to study the action of sildenafil citrate on cardiovascular disorders. The researchers registered issues from the patients regarding experiencing untimely hardons.

Initially this was authorized as a side-effect experienced by men who took the drug but further investigation revealed that the blue pill could  help men get over the nightmare of going through erectile dysfunction. This new breakthrough  helped millions of males around the world. Since then, huge amount of money have been spent in order to prove the effectiveness of the drug. This drug has become one of the most successful over the counter drugs in the history of pharmaceuticals.

Viagra is the brand name associated with sildenafil citrate. Also known as the blue pill, it is a little expensive and out of the reach of a common man. Many most respected companies have come up with alternatives of this medication under names such as Zenegra, Kamagra, suhagra and Penegra etc. These drugs are also known as Generic drugs, but unlike the branded version, they offer value for money.

There are questions regarding cause of the decreased expense of this medication. The reasonable prices are related to the fact that presently these erectile dysfunction drugs are not sold on a large scale and the producers don’t have to spend on the actual hefty marketing budget of these pills. According to the actual rule of patency, producers can seek actual permission of the Food and drug administration to manufacture and market universal versions of the medication.

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