Cenforce 100 mg contains sildenafil citrate, a PDE5 inhibitor commonly used to treat erectile dysfunction (ED) in adult men. It works by helping increase blood flow to the penis during sexual stimulation, which can support achieving and maintaining an erection. Cenforce 100 mg should be used according to a healthcare professional’s advice, particularly because sildenafil may interact with certain medicines and may not be suitable for everyone. Common side effects can include headache, flushing, indigestion, nasal congestion, dizziness, and temporary visual changes. It should not be taken with nitrate medicines because the combination can cause a dangerous drop in blood pressure.