Fildena 100 mg is effective for treating erectile dysfunction but can cause side effects such as headaches, flushing, nasal congestion, indigestion, and dizziness. While most side effects are manageable and temporary, serious conditions like priapism, sudden vision or hearing loss, and chest pain require immediate medical attention. By maintaining open communication with your healthcare provider, managing side effects proactively, and making lifestyle adjustments, you can enhance the safety and effectiveness of Fildena 100 mg.