Viagra® and generic Viagra® consist of sildenafil, which is similar medicine found in A further drug named Revatio®. Revatio® is used to deal with a scarce illness called pulmonary arterial hypertension (PAH).Sovradosaggio: Dosi singole fino a five hundred mg sono point out somministrate a soggetti sani, e dosi many giornaliere fino a 100 mg so