Viagra was discovered by chance
In fact it happened when scientists in Britain were testing a new drug for use in controlling pulmonary arterial hypertension (PAH) and it was quite a surprise to discover an improved sexual performance as a response in male participants. Yet, when they came to analyze the results, the scientists realized the effect they were intending for the major artery through the chest was actually occurring in the penis. A further clinical trial confirmed the results and that was the birth of most popular little blue pill.The work to develop an effective treatment for PAH continued nevertheless and resulted in a different version of the viagra is called Revatio. This drug dilates the pulmonary artery, reducing blood pressure and avoiding the risk of angina. The initial formula has also been developed to become a remedy for altitude sickness used when a person experience unpleasant sensations being brought down the mountains.
Viagra is now developed in various forms
The ways of delivering medication to the body can play an important role in marketing success. That’s why Pfizer has been working on creating viagra in unusual formats. The basic chemistry doesn’t change, a pill is not always the best format to be a success in overseas markets. And now users can buy their ED medication as a melt-in-the-mouth tablet, a soluble pill, a capsule, and powder or a liquid you can drink on its own or added to some food or drink, a skin patch, and sometimes a gel to rub directly onto the penis. The significant difference between the forms is in the speed with which the chemicals are absorbed into the blood. As a traditional pill, it takes about 15 minutes usually, but melt-in-the-mouth tablet or a liquid becomes active almost at once.