Cenforce 100 mg is a tablet containing sildenafil, a medicine used to treat erectile dysfunction (ED). It helps increase blood flow to the penis during sexual stimulation, making it easier to achieve and maintain an erection. It typically starts working within 30–60 minutes, and its effects may last up to around four hours. Common side effects include headache, facial flushing, indigestion, and dizziness. The 100 mg strength is the maximum usual recommended dose for ED and may not be suitable for everyone. Never combine it with nitrate medicines or other ED medications without medical advice.