Erectile dysfunction and pulmonary arterial hypertension are the two disorders that Vidalista 20mg is typically used to treat.Erectile dysfunction (ED): Vidalista 20mg helps men achieve and maintain an erection by boosting blood flow to the penis.Pulmonary arterial hypertension (PAH): Vidalista lowers blood pressure and facilitates the heart's ability to circulate blood by relaxing the lungs' blood arteries.