Super Fildena, it is commonly marketed as a combination containing sildenafil plus dapoxetine. The circulation-related effect comes mainly from sildenafil. Sildenafil causes vasodilation (widening of blood vessels), particularly in the erectile tissue. This increases blood flow to the ***** during ***** stimulation. It can also cause a mild, temporary reduction in overall blood pressure. In studies of 100 mg sildenafil, the average maximum reduction was about 8/5 mmHg, occurring around 1–2 hours after taking it. D DailyMed +1 Important safety point Sildenafil must not be combined with nitrate medicines such as nitroglycerin or isosorbide, because the combination can cause a potentially dangerous fall in blood pressure. D DailyMed If you tell me the exact ingredients and strengths written on your Super Fildena package, I can explain its effects on blood pressure, heart rate, and circulation more specifically.