Vidalista 40 tablet is a very effective medicine for treating erectile dysfunction or impotence in men.  Tadalafil is the main active component included in this drug.  The main function of this drug is to improve the amount of blood in the penile region in the body. So that the erection lasts longer during intercourse. And you can enjoy sex with your partner for a long time. This medicine should be taken only once a day. This claim is known as the Weekend Pill. This is because this drug gives longer effective results than other drugs. This drug is a prescription drug.