Men with erectile dysfunction (ED) are the main patients for the medicine Fildena 50 mg. It has 50 milligrams of sildenafil citrate, an inhibitor of phosphodiesterase type 5 (PDE5) that increases blood flow to the penis and facilitates erections in response to sexual stimulation. Men can effectively acquire and sustain an erection during sexual activity with the use of Fildena 50. It functions by allowing for more blood flow by relaxing the blood arteries of the penis. You can take Fildena with or without food, though meals heavy in fat may cause it to take longer to start working.