Fildena 120 mg is a prescription medication used to treat erectile dysfunction (ED) in men. It contains sildenafil citrate, which works by relaxing blood vessels in the penis and increasing blood flow during sexual stimulation, helping men achieve and maintain an erection. Fildena 120 mg is typically taken 30–60 minutes before sexual activity, with effects lasting up to 4–6 hours. It should be used under medical supervision, especially for men with heart conditions or those taking nitrate medications.