The medicine is used to treat male sexual disorders such as impotence and erectile dysfunction. Vardenafil, a component in Fildena CT 100, helps men enhance blood flow to their penile tissue. This medication should be taken only by men over the age of 18. This drug's effects persist for about 5 hours. Fildena CT 100 Sildenafil can be taken before or after meals. Consuming fatty foods or cold liquids while taking this medication reduces its effectiveness. This drug has a 4- to 6-hour effect. Take this medication exactly as prescribed by your doctor.