There is no age for impotence. You can find it in men of any age. This disease is found in older people. But it is not at all the case that this disease is not seen in a person under 18 years of age. This disease can also be seen in such youngsters. Tadalista 5 is a drug made from a drug called tadalafil which will give you 36 hours of efficacy during which even the elderly can be satisfied by having sex for a long time.