Erectile dysfunction can be treated with the oral medicine Vidalista 20 mg, which is a generic version of the brand-name drug Cialis. Tadalafil, the active component in this prescription, is the same component that is found in Cialis. This medication is classified as a PDE5 inhibitor, which is a class of pharmaceuticals that suppress the PDE5 enzyme. To provide relief from erectile dysfunction (ED), tadalafil works by directly acting on the enzyme that is responsible for erections in the penis. Only when a person is sexually aroused is the medication capable of producing the desired result of a strong erection being achieved. The effects of this medication can remain in the body for up to 36 hours after the recommended dosage of one tablet per day. Additionally, it is employed clinically in the treatment of benign prostatic hyperplasia as well as pulmonary arterial hypertension.