Malegra 100 mg is a medication commonly used to treat erectile dysfunction (ED) in men. It contains Sildenafil citrate as the active ingredient, which is the same substance found in Viagra. Sildenafil is a PDE5 inhibitor (phosphodiesterase type 5 inhibitor), and it works by increasing blood flow to the penis during sexual stimulation, helping men achieve and maintain an erection. https://www.genericday.com/malegra-100-mg.html