Men who suffer from erectile dysfunction should talk to their doctor before taking Cenforce 120 mg drug. They should also avoid certain foods and medicines. You should also not use alcohol or other substances that can interact with the Sildenafil tablet. For the best results, Cenforce 120 mg should be taken 30 minutes before sexual activity. However, it can take longer to be absorbed if you have a high-fat meal. When using Cenforce 120 mg, you should make sure to drink a lot of water. Your blood pressure may fluctuate, which can affect the way the pill works. If you feel dizzy, faint, or have other problems, stop taking the pill. Cenforce is an effective drug for male erectile dysfunction (ED). It works by blocking phosphodiesterase type-5 (PDE-5). CGMP, a chemical that regulates PDE-5 enzymes, is inactivated when PDE-5 is blocked. This improves blood flow and helps men maintain erections. Cenforce works by relaxing the smooth muscles of the blood vessels in the penile vein.