Revatio medicine is Mainly used to treat ED. If you really want to treat your ED problem you can easily buy Revatio online.  Revatio medicine helps to get easily erect and also Revatio helps to improve some markers of disease in people with Pulmonary arterial hypertension.It can also increase your risk for heart disease. This medicine is available in 10 mg to 20 mg.You should not take any other medicines before taking this medicine.You should use the doctor’s prescription before taking this medicine.Here Revatio tablet’s  common side effects are Flushing, Headache, Blurred vision (changes in color vision), Stuffy nose, nosebleeds, Sleep problems, Muscle pain, back pain, Upset stomach etc.