The way Viagra works, is to improve the flow of blood that circulates around the human body by increasing the amount of a protein known as phosphodiesterase 5 that is located in the penis and constricts the arteries in that zone. But, this protein is also found in two other zones of the body, the lungs and the right ventricle of the heart. Pulmonary hypertension influences the blood flow to the lungs, therefore constricting the arteries and stretching the right ventricle of the heart. It is alike in diagnosis to blood hypertension, but the additional work the heart has to do to pump the protein around the body in the blood often causes fatigue, dyspnea and in extreme cases can bring about death of the patient. Having blood hypertension is easily manageable, and with the correct treatment patients can increase their lifespan by approximately twenty years. Nevertheless, if a patient has pulmonary hypertension, their life is immensely shorter. In the most serious of cases, a patient might only have 3 years without the correct medicine, and this has a detrimental result on their quality of life. No essential test was executed with this medical condition, as it was hard to diagnose. Then, in 2002 experiment was executed on several patients who sufered from this condition. ForegoingPrior tests with other medicine was focused on healthy hearts, and did not reach successful outcome because it was hard to strengthen the correct ventricle combining with lessening blood pressure and unnerving the lungs. This experiment included giving patients controlled doses of Viagra, and lead to surprising outcome. Viagra was identified to be highly successful in improving the heart function of patients who have a diseased right ventricle, and decreased the high pressure in their lungs. Because Viagra is a completely safe and natural medicine that handles the chemical imbalances in the blood run, doctors at Glasgow’s Yorkhill Children’s Hospital gave this medication to children who suffered from extreme pulmonary hypertension. The outcome was astounding. Many of these infants would not have made it without this interference of Viagra, and the treatment has resulted in a breakthrough with improving patient treatmentmedicine. Viagra is also useful in cases such as lung transplant surgery, where the right ventricle can often fail if the lung is rejected. Viagra is considered one of the most popular and successful therapy in conditions such as erectile dysfunction, and now it has been proved to be successful in treating pulmonary hypertension. Expanding the blood vessels and easing the breathing difficulties of the patient is a modern outbreak. Because Viagra has no notable side effects, it can now be given to many patients of all age categories who suffer from various blood related medical conditions.