Forzest 20 is a medication used to treat erectile dysfunction (ED) in men. It contains Tadalafil 20 mg, a PDE5 inhibitor, that works by increasing blood flow to the penis, helping men achieve and maintain an erection during sexual activity. Tadalafil, the active ingredient in Forzest 20 Mg, works by relaxing the blood vessels in the penile area, facilitating the natural response to sexual stimulation.