Tadarise 20 is used to treat erectile dysfunction in men. It increases blood flow to the penis to help men get an erection. It works by helping to relax the blood vessels in your penis, allowing blood to flow into your penis when you get sexually excited. This drug helps increase blood flow to the penile tissues of men. This drug is only taken by men over 18 years of age. You should take this medicine as advised by your doctor. You take this medicine with water. You can also take this medicine before or after a meal. The effect of this drug lasts for 6 hours.