Malegra share comparable chemicals. Sildenafil, a component that dilates blood vessels and widens them, is the primary ingredient in the medication. First, you take a glass of water and the Sildenafil -rich medication Malegra. Second step: Malegra relaxes the blood vessel's muscle cells by entering the circulatory system. Step three: More room is created in the blood arteries for the higher blood to be displaced when the inflated muscles relax.