Fildena CT 100 is a generic version of Sildenafil Citrate, a drug widely known for its effectiveness in treating ED. Sildenafil works by relaxing the blood vessels in the penis, allowing increased blood flow, which helps men achieve and maintain an erection during sexual arousal. While Fildena CT 100 is effective for many, it may cause side effects like headaches, dizziness, nausea, or visual disturbances. Some individuals may also find that Sildenafil is not effective enough, or they may experience adverse reactions. As a result, they may consider other options for managing their ED.