VIDALISTA 40 MG is one of the trade names for Tadalafil which is a PDE5 inhibitor medication How it works is by the widening of the blood vessels in the penis enabling the improvement of blood flow within the penis if sexually stimulated This aids person with erectile dysfunction to have a erection required for sexual intercourse Vidalista is also available in different fortunes of 5 mg 10 mg 15 mg and 20 mg relying upon the severity of the issue and individual care plan.