If Cenforce 25 mg contains sildenafil 25 mg, it has the same main risk profile as other sildenafil products. The 25 mg dose is the lowest standard sildenafil dose for erectile dysfunction and is generally used when a lower dose is appropriate. D DailyMed +1 Main risk factors Low blood pressure, dizziness or fainting: Sildenafil can lower blood pressure, particularly when combined with alpha-blockers or blood-pressure medicines. D DailyMed Headache and flushing: These are common sildenafil effects. Visual changes: Blurred vision, altered color perception, or light sensitivity can occur. Sudden vision loss requires immediate medical attention. D DailyMed Heart/cardiovascular problems: ***** activity itself may be unsafe for some people with significant cardiovascular disease. D DailyMed Prolonged erection: An erection lasting more than 4 hours is an emergency. D DailyMed Drug interactions: Sildenafil must not be taken with nitrate medicines such as nitroglycerin or with riociguat because of potentially dangerous blood-pressure reduction. D DailyMed Since you've mentioned dizziness, flushing and blurred vision with ED medicines in your earlier questions, 25 mg may reduce dose-related side effects compared with 100 mg, but it can still cause them. If you tell me your age and what medicines you currently take, I can identify the specific risk factors that would matter most for Cenforce 25 mg.