Tadalista professional is a drug made from an active ingredient called tadalafil. Which is the best and most successful treatment to treat impotence in men like erectile dysfunction. These pills are believed to be effective for a longer period of time than other drugs. This drug is most commonly taken by men over the age of 18. The main function of this drug is to improve blood flow in the penis of men and help them to have sex for a long time with a strong erection. This drug usually gives effective results for up to 36 hours.