The way Viagra works, is to make better the stream of blood that circulates around the human body by making grow the amount of a protein known as phosphodiesterase 5 that is located in the penis and squeezes the arteries in that area. But, this protein is also located in two other zones of the body, the lungs and the right ventricle of the heart. Pulmonary hypertension influences the blood run to the lungs, thus restricting the arteries and stressing the right ventricle of the heart. It is alike in diagnosis to blood hypertension, but the additional exercise the heart has to do to pump the protein around the body in the blood often leads to fatigue, shortness of breath and in extreme cases can result in death of the patient. Having blood hypertension is easily controlled, and with the right medicine patients can increment their life by more or less twenty years. Nevertheless, if a patient suffers from pulmonary hypertension, their life is immensely shorter. In the most serious of cases, a patient may only have 3 years without the correct medicine, and this has a hurtful result on their life quality. No essential testing was done with this medical condition, as it was difficult to determine. Then, in 2002 experiment was conducted on a number of patients who were suffering from this condition. ForegoingPreceding tests with other medication focused on healthy hearts, and did not reach successful results because it was difficult to strengthen the right ventricle combining with reducing blood pressure and unnerving the lungs. This experiment included giving patients controlled dosage of Viagra, and lead to amazing outcome. Viagra was identified to be very successful in improving the heart function of patients who have a diseased right ventricle, and reduced the hypertension in their lungs. Because Viagra is a completely safe and natural drug that works with the chemical imbalances in the blood flow, doctors at Glasgow’s Yorkhill Children’s Hospital gave this medication to babies who were suffering from extreme pulmonary hypertension. The outcome was surprising. Many of these children would not have survived without this implementation of Viagra, and the treatment has provided 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 considered one of the most famous and successful therapy in conditions such as erectile dysfunction, and now was proved a success in treating pulmonary hypertension. Widening the blood vessels and alleviating the breathing troubles of the patient is a modern breakthrough. Because Viagra has no notable side effects, it can now be given to many patients of all ages who suffer from different blood related medical conditions.