tadalafil is found as an active ingredient in vidalista 80 mg tablets. This drug is used to treat erectile dysfunction in men during sexual intercourse. Take this medicine 1 hour before sexual intercourse. So you can see the good effect of this medicine. The effect of this drug lasts for 36 hours. Take this medicine only once a day. Do not use this medicine daily. The patient should use this medicine only if he has a problem with ED.