Tadalafil acts as the active ingredient in Tfil tablets. It is the best drug for solving sexual problems. Tfil is taken one hour before sex. After taking it, its effect remains for 36 hours. It is the best drug used by men. It is a popular drug for solving the problem of impotence. Tfil should be used once a day. Sex is the best drug of life. This is widely used in the use of men.