Tadalista 10 mg is a drug used to fight impotence. It is used to improve erectile function by increasing the effect of nitric oxide (NO), the main mediator of penis erection. The effect of this pill helps men to tighten sexual arousal. The effect of this pill is that the erection lasts longer. The effect of this medicine lasts for about 4 to 5 hours. This medicine should be taken with plain water.