Sildenafil citrate is a phosphodiesterase type 5 (PDE5) inhibitor, which means it helps increase blood flow to the penis during sexual arousal, thereby improving erections. It works by relaxing the blood vessels in the penis, allowing more blood to flow into it. Kamagra 100mg oral jelly in use works to achieve an adequate erection in men. Take that jelly with pleasure. So more sex works.