Vidalista 40 is a very effective medicine for eliminating impotence. The main ingredient in this medicine is tadalafil. Which helps to achieve a longer and stronger erection during sexual intercourse. This pill helps to increase the blood flow to the penis. You should take this medicine on an empty stomach 30 minutes before sexual intercourse. The effect of this drug lasts for 36 hours. Visit welloxpharma.com for more information.