Fildena 100 is a medication used to treat erectile dysfunction (ED) in men. It contains the active ingredient Sildenafil Citrate, which works by increasing blood flow to the penis and improving erectile function. Fildena 100 is a highly effective treatment for ED. It helps to improve blood flow to the penis, which can result in harder and longer-lasting erections. Fildena 100 typically takes effect within 30 minutes to an hour of taking the medication. This quick onset makes it convenient for spontaneous sexual activity.