Viagra For ManViagra Trials
Information on the history of Viagra discovery. For your benefit the entire cycle has been divided into separate phases with specific reference to the outcomes of Viagra trials.
The history of Viagra clinical trials
Behind every great discovery in the history of mankind, there is always an interesting history, certain unexpected incidents that helped in completing a cycle. The history and clinical trials of Viagra and finally its launch are of no exception. The process of discovering the most popular and commercially successful impotence treatment medication actually started with an accident. Scientists actually wanted to achieve something else, and the actual final outcome wasn’t really thought of. However, with this finding a new process actually started and to date it has helped millions of men throughout the world to enjoy their physical and emotional well-being by restoring their sex lives. The entire narrative of Viagra trials and its launch in the market as the first oral impotence treatment medication is surely a tale larger than life.
The initial phase of Viagra trials
There have been several disputes about the actual synthesisers of sildenafil citrate. While most of the sources give the credit to Pfizer employees Peter Dunn and Albert Wood, they are accused by others with the inability to identify the right trio, namely, Andrew Bell, Dr. David Brown and Dr. Nicholas Terrett. The discovery of Viagra is often cited as an accident because the Pfizer Inc. was actually trying to come up with a medication that would treat angina, a heart problem that is generally understood as chest pain. The authorities thought about introducing a medication that would normalise blood flow in the heart and relieve a patient from facing life threatening situations. Their effort started in 1989 and after two years in 1991, Peter Dunn and Albert Wood arguably discovered a chemical UK 92480 that can normalise blood flow in the cardiac arteries.
The mid phase of Viagra trials
The compound UK 92480 is actually sildenafil citrate that is the basic constituent of Viagra. Though it was thought that this chemical can solve angina, during clinical trials it was found that it was not as promising as expected. Quite naturally the medicine producers were thinking about abandoning the ongoing project and starting a new quest. Surprising news came at this stage as volunteers of the trials reported that they experienced long lasting and firm erections after taking this medication. Eventually clinical Viagra trials started from 1993 onwards. As the phase I of the trail provided the producers with satisfactory results, they decided to pursue their trails to the phase II. During the extensive course of Viagra trials in the Pfizer laboratories, this medication was prescribed to more than 3000 men, starting from 19 to 87 years.
The final phase of Viagra trials
Based on the highly persuasive outcome of the Viagra trials, the Pfizer Inc. decided to go on with the idea of launching the first oral impotence treatment medication. In 1996 the basic ingredient of the medication, sildenafil citrate, was patented and also was sent for the FDA approval so that the medication could be safely administered for treating erectile dysfunction. After adequate consideration this medication was approved by the FDA and on 27th March 1998 Viagra was made available for use as a prescription medication. To date Viagra occupies a lion’s share of the prescription anti-impotence treatments in the global scenario and is considered to be one of the safest treatments for erectile dysfunction.