The side effects listed and noted for both Fildena and Viagra use are actually identical, and it is due to the same active ingredient contained in these two treatments. Common, less serious, and ephemeral side effects notable for both Viagra and Fildena product use encompass the following:

Headaches
Facial flushing
Stuffy nose
Blurry vision
Heartburn
Dyspepsia

These side effects are fleeting and manageable and should not be a concern for patients. However, some side effects require immediate intensive care due to the dangers they impose. These rare and grim side effects are as follows:

Chest pain
Heart attack
Myocardial infarction
Convulsions or seizures
Blindness and vision alterations (cyanopsia)
Hearing loss, tinnitus
Myalgia, general weakness
Shortness of breath, difficulty breathing
Tachycardia, arrhythmia, changes in heart rate
Edema
Anaphylaxis, severe allergic reaction to Sildenafil