Decreased blood flow to the penis causes erectile dysfunction in which men are unable to get and maintain a solid erection. Men with this problem are called impotent and there is only one best way to beat the condition of impotence and that is Vidalista 10. With the use of this medicine the penis remains hard for 3 to 4 hours. This medicine is not harmful to the skin in any way. You can buy this medicine from any online store or any medical store.