Tadarise 2.5 is useful in relieving erectile dysfunction in men. An ingredient called tadalafil plays an important role in this medicine. This drug increases the speed of blood in the penis. This drug prolongs erection during intercourse. The effect of this drug can last up to 36 hours after taking the drug. This drug should not be taken by women and children, if taken it has bad effects. This drug is not taken by women.