Malegra Pro 100 mg is a medication primarily used to treat erectile dysfunction (ED) in men. It contains Sildenafil citrate, which is the same active ingredient found in medications like Viagra. Sildenafil is a PDE5 inhibitor, and it works by increasing blood flow to the penis, helping men with ED achieve and maintain an erection when sexually stimulated. Sildenafil (100 mg) blocks the action of the enzyme PDE5. This enzyme typically breaks down a substance called cGMP, which helps relax the smooth muscles in the blood vessels of the penis. https://www.genericday.com/malegra-pro-100-mg.html