Fildena CT 100 is a medication used to treat erectile dysfunction (ED) in men. It is part of the Fildena product line, and its key active ingredient is sildenafil citrate, a phosphodiesterase type 5 (PDE5) inhibitor. Fildena CT 100 contains sildenafil citrate as its active ingredient. Sildenafil is known for its ability to increase blood flow to the penis during sexual stimulation, facilitating the attainment and maintenance of an erection.