Tadalafil is seen as a secondary ingredient in Tadarise tablet. This drug is used by men to overcome their impotence. The drug should be taken once a day with a glass of water. This medicine should be taken on an empty stomach. It can be taken after a meal but taking it after a meal has less side effects. The effect of this drug lasts for at least 4 to 5 hours. So you can have fun with your partner for a long time.