Tadarise is a medication used for the treatment of erectile dysfunction (ED) in men. It contains tadalafil as its active ingredient, which is also found in the popular ED medication Cialis. Tadalafil belongs to a class of drugs called phosphodiesterase type 5 (PDE5) inhibitors. Tadarise works by relaxing the muscles in the blood vessels of the penis, allowing for increased blood flow, which in turn helps men to achieve and maintain an erection during sexual stimulation. It's worth noting that Tadarise does not lead to spontaneous erections; sexual stimulation is still required for it to be effective.