The most popular pill for treating erectile dysfunction or impotence in men is vidalista 40. This medicine contains tadalafil as an active ingredient. Consuming it just once can give very good results. This drug works faster than other drugs and increases the blood flow in the blood vessels in the penis of men and this helps them get a better erection. So that a person can enjoy a long sex life during sexual activity. The best time to take this medicine is 30-40 minutes before sexual activity. So that it can be effective. This pill should not be taken by children and women but only by men above 18 years of age. For more information, you can visit pharmev.com.