Suhagra 50 mg is a medication used to treat erectile dysfunction (ED) in men. Its active ingredient is sildenafil citrate, a phosphodiesterase type 5 (PDE5) inhibitor that helps improve blood flow to the penis during sexual arousal, enabling men to achieve and maintain an erection. Sildenafil relaxes blood vessels in the penis, allowing increased blood flow when a man is sexually stimulated.