Fildena 100 mg, which contains Sildenafil Citrate, is used to treat erectile dysfunction (ED) by increasing blood flow to the penis. While effective, it may not be safe for everyone—especially individuals with heart conditions. Patients with serious cardiovascular issues—such as recent heart attack, stroke, or uncontrolled arrhythmias—are typically advised to avoid ED medications like Fildena 100 mg unless a doctor specifically approves it. The strain of sexual activity itself can also pose risks in patients with weak heart function. Fildena 100 mg is not automatically safe for heart patients. It can be effective but must be used under strict medical supervision to prevent serious complications.