Vidalista 5 mg (tadalafil) still requires sexual stimulation to work. Tadalafil helps by improving the body’s natural erectile response: Sexual stimulation causes the release of nitric oxide in the penis. Tadalafil helps maintain the chemical signals that relax penile blood vessels. This allows Vidalista 5 mg blood flow and helps you get an erection when you are aroused. Vidalista 5 mg: Does not create an automatic erection. Does not increase sexual desire or libido. May be taken as a daily low-dose treatment for some men, allowing more flexibility because tadalafil stays in the body for a longer time. If you have ED, factors such as stress, diabetes, blood pressure, medications, sleep, and overall cardiovascular health can also affect how well tadalafil works.