Megalis 10 Mg is a medication used to treat ED, belonging to a class of drugs known as phosphodiesterase type 5 (PDE5) inhibitors. Its active ingredient, tadalafil, works by increasing blood flow to the penis during sexual stimulation, thereby facilitating the achievement and maintenance of an erection. Unlike some other ED medications, Megalis 10 Mg has a longer duration of action, allowing for spontaneity in sexual activity.