The active component of the high-dose medication Fildena Double 200 is sildenafil citrate. It can be helpful in helping men with ED achieve and maintain a firm, sustained erection when sexually stimulated. For patients with severe Erections, high-dose drugs like Fildena Double 200 are typically recommended. In cases where your ED is mild to severe, a lower dosage of sildenafil may be more suitable and beneficial. Your healthcare provider can help you determine the right dosage for your specific needs. It's important to discuss potential side effects with your doctor and to be aware of them.