Fildena 120mg is a strong dose of Sildenafil Citrate used to treat severe erectile dysfunction. While effective, it may cause undesirable responses in some users. Common side effects include headache, flushing, nasal congestion, dizziness, upset stomach, and blurred vision. In rare cases, it can lead to more serious effects like chest pain, irregular heartbeat, or prolonged erection (priapism), which requires immediate medical attention. Combining Fildena 120mg with alcohol or nitrate-based medications can increase the risk of side effects. Due to its high potency, this medication should only be taken under medical supervision to ensure it is safe and suitable for your condition.