Fildena 100 is primarily used to treat erectile dysfunction (ED) by improving blood flow to the male reproductive area. It contains sildenafil citrate, a PDE5 inhibitor that helps relax blood vessels, enabling a firm and sustained response to stimulation. This medication enhances confidence and performance in men experiencing difficulties. Fildena is taken 30-60 minutes before activity and remains effective for 4-6 hours. It should only be used under medical supervision, especially for those with heart conditions or on nitrate medications. Side effects may include headache, flushing, dizziness, or upset stomach. Always follow dosage instructions for safe and effective results.