Cenforce 100mg tablets, which are used to treat erectile dysfunction (ED) in men. They are an FDA-approved, branded type of generic sildenafil citrate, a common ED treatment. As with many ED medications, these pills may take up to an hour to take effect, and can last for up to four hours. They should be taken approximately one hour before sexual activity, and should only be taken up to three times per day. They should not be taken with alcohol, as this can interfere with their effectiveness, so please read the patient information leaflet carefully before use.