A group of scientists were working on developing the medicine for controlling pulmonary arterial hypertension (PAH) and it was quite a get a result of improved sexual performance in men participating the trial. Analyzing the results, the researchers saw the effect expected in the major artery through the chest actually happening in the penis. New trials confirmed the results giving the birth to the most popular erectile dysfunction pill in the world. Sceintist went on develop an effective treatment for PAH and created Revatio, a yonger viagra‘s brother effective in dilating the pulmonary artery and reducing blood pressure which helps minimizing the risk of angina. The substance tested initially has also been altered successfully to create a new treatment for altitude sickness helping people who feel bad in high mountains and using for safe patient evacuation.
Not just blue pills
Viagra success wouln’t be so great if Pfizer produced nothing except the pill format. In fact for many men in US and other continents pills don’t give the most convenient drug delivery. As a pill Viagra takes about 15 minutes to be absorbe but medications in liquid or melt-in-the-mouth would act much quicker. So to stay competitive viagra I snow produced in various formats. The basic chemistry doesn’t change from capsules, powder or liquid to skin patch, and gels to rub into the penis. With all the variety of forms Viagra do not sacrifice its power and chemistry but acquiring the flexibility to match every patient.