Fildena CT 50 should be taken as directed by a healthcare provider. The chewable tablet is usually consumed by chewing it before swallowing. It's important to follow dosage instructions and not exceed the recommended dose to avoid potential side effects. Common side effects of Fildena CT 50, similar to other sildenafil medications, may include headache, flushing, dizziness, nasal congestion, indigestion, and changes in vision. It's important to discuss any concerns or adverse reactions with a doctor.