Cenforce 100 mg is a medication primarily used to treat erectile dysfunction (ED) in men. It contains sildenafil citrate, which is the same active ingredient found in Viagra. Sildenafil works by increasing blood flow to the penis, helping to achieve and maintain an erection in response to sexual stimulation. It should be taken about 30 minutes to an hour before sexual activity. It's usually taken as a single dose and shouldn't be taken more than once a day.  While Cenforce 100 mg is available online and over-the-counter in some places, it’s best to use it under the guidance of a healthcare provider to ensure it's appropriate and safe for you.