Cenforce is not a long-lasting medication in the sense of all-day or 24–36 hour effect. It contains sildenafil, which typically works like this: Onset: ~30 to 60 minutes after taking it Peak effect: around 1 to 2 hours Duration: about 4 to 6 hours (sometimes a bit shorter or longer depending on the person) So it’s effective for a limited window rather than being “all-day long lasting.” What “long-lasting” would Cenforce instead If someone is looking for longer duration, that’s usually a different medication like tadalafil (which can last up to 24–36 hours). Sildenafil-based tablets like Cenforce, Viagra, Fildena, etc., all work in a similar shorter time frame. Important clarity It doesn’t cause continuous erection for hours; it only helps when there is sexual stimulation Taking more does not extend duration safely—it only increases side effects risk (headache, flushing, dizziness) If you want, I can compare Cenforce with other options so you can see which one fits “long-lasting vs fast-acting” better.