Fildena Professional is a prescription medication used to treat erectile dysfunction (ED) in men. It contains Sildenafil Citrate, a well-known active ingredient that increases blood flow to the penis by relaxing the blood vessels, helping men achieve and maintain an erection during sexual stimulation. What makes Fildena Professional unique is its sublingual form—a tablet that dissolves under the tongue, allowing for faster absorption and a quicker onset of action, usually within 15 to 30 minutes. It is generally effective for about 4 to 6 hours.