Vidalista 20mg is a prescription medication containing the active ingredient Tadalafil. It is primarily used to treat erectile dysfunction (ED) in men.Cenforce 100 is a medication containing Sildenafil Citrate as its active ingredient. It is commonly prescribed to treat erectile dysfunction (ED) in men. Cenforce 100 works by relaxing the blood vessels in the mens organ, allowing for increased blood flow during physical stimulation, which helps in achieving and maintaining an erection.