Cenforce 100 tablets should be taken 30 minutes prior to sexual activity, according to medical advice. Men use this medication to help them achieve a strong, long-lasting erection that lasts for four to five hours. Light food should be had before to taking this medication. and ought not to drink alcohol. It is recommended to take this medication with a glass of water. This medication should not be broken or opened. You must speak with your physician prior to taking this medication.