Tadalafil can be substituted with Vidalista 80. The purpose of this drug is to address erectile dysfunction-related problems. Tadalafil, one of Vidalista's 80's potent components, works similarly to Cialis. It belongs to the group of drugs known as phosphodiesterase type 5 inhibitors. Take Vidalista half an hour to an hour before you intend to have sex. Avoid crushing, chewing, or breaking the tablet, swallow it with water or juice. It may function more quickly if taken on an empty stomach, although it can be taken with or without food. Never take more than one tablet in 24 hours.