The way Viagra works, is to better the flow of blood that circulates around the human body by making grow the level of a protein known as phosphodiesterase 5 that is located in the penis and squeezes the arteries in that area. Nevertheless, this protein is also located in two other areas of the body, the lungs and the right ventricle of the heart. Pulmonary hypertension influences the stream of blood to the lungs, therefore restricting the arteries and stretching the right ventricle of the heart. It is similar in diagnosis to blood hypertension, but the extra work the heart is obliged to do to pump the protein around the human body in the blood often causes tiredness, dyspnea and in extreme cases can result in death of the patient. Having high blood pressure is easily manageable, and with the corresponding medicine patients can increase their lifespan by more or less twenty years. However, if a patient has pulmonary hypertension, their life span is immensely decreased. In the extreme cases, a patient might only have 3 years without the corresponding medication, and this has a detrimental result on their life quality. No real testing was done with this medical condition, as it was difficult to identify. Then, in 2002 experiment was executed on a number of patients who were suffering from this condition. ForegoingPreceding tests with other medication focused on healthy hearts, and did not get successful results because it was hard to strengthen the right ventricle in combination with lessening blood pressure and relaxing the lungs. This experiment included giving patients measured doses of Viagra, and produced amazing results. Viagra was proved to be extremely successful in enhancing the heart function of patients who have a affected right ventricle, and decreased the hypertension in their lungs. Because Viagra is a completely secure and natural treatment that works with the chemical imbalances in the blood stream, doctors at Glasgow’s Yorkhill Children’s Hospital gave this medication to infants who suffered from extreme pulmonary hypertension. The outcome was surprising. Many of these infants would not have survived without this administration of Viagra, and the cure has resulted in a breakthrough with making better patient drug. Viagra is also useful in cases such as lung transplant surgery, where the right ventricle can often collapse if the lung is rejected. Viagra is thought to be one of the most famous and successful treatment in cases such as erectile dysfunction, and now it has been proved to be successful in treating pulmonary hypertension. Widening 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 experience various blood related deseases.