Sildenafil citrate, an active ingredient, increases blood flow to the penis to treat erection problems with blocked vessels. However, proper dosages are required. Cenforce 25mg to 200mg dosages are available. After a doctor has examined the problem and prescribed the appropriate dosage of sildenafil Citrate-based medication which is best for men. Adult men with 80% or more erectile problems during intercourse are eligible for Cenforce 150 dosages. Talk to your doctor about all aspects of your sexual problems, including your age, health, and weight.