Fildena CT 50 is a medication used to treat erectile dysfunction (ED) in men. It contains Sildenafil Citrate, a phosphodiesterase type 5 (PDE5) inhibitor. Fildena CT 50 comes in a 50 mg tablet form. The recommended starting dose for most men with ED is 50 mg, taken as needed, about 30 minutes to 1 hour before physical activity. However, your healthcare provider may adjust the dosage based on your response and tolerability. Fildena CT 50 typically starts working within 30 minutes to 1 hour after ingestion. Its effects can last for about 4 to 6 hours, providing a window of opportunity for physical activity.