Tadarise Generic Tadalafil is used to treat erectile dysfunction (impotence) in men. Tadarise Tablets Contain tadalafil, a phosphodiesterase type 5 inhibitor that is used to treat erectile dysfunction and Impotence in men. This helps men to know a strong erection during intercourse. Take this medicine 30 minutes before intercourse. You can also take this medicine before or after a meal. Take this medicine with water but do not break or chew the medicine. Do not consume alcoholic beverages or fatty foods with this drug.