Sildenafil Citrate is one of the active components of silagra. In addition to treating erectile dysfunction (ED), sildenafil 100mg increases blood flow to the penis, enabling you to achieve and sustain a strong, long-lasting erection. This medication acts by blocking the substance that causes your penis' veins' muscles to relax and allow blood to flow more freely. When combined with mental and physical stimulation, it motivates men to attain and maintain a hard erection.