Malegra Professional is a medication used for the treatment of erectile dysfunction (ED) in men. It contains Sildenafil Citrate as its active ingredient, which belongs to a class of drugs called phosphodiesterase type 5 (PDE5) inhibitors.Sildenafil Citrate works by inhibiting the enzyme phosphodiesterase type 5, which regulates blood flow in the penis. By inhibiting this enzyme, Malegra Professional helps to increase blood flow to the penis during sexual stimulation, enabling men to achieve and maintain an erection.