You should consult with your doctor before starting Cenforce because you might be allergic to Yohimbe, Epimedium, or Tribulus Terrestris which are included in Cenforce. If you have erectile dysfunction, impotence, low libido, or any other sexual problem, you may benefit from Cenforce. Before taking Cenforce, you should know that not all people respond the same way to Cenforce. There are some men who have problems with impotence while others don't. Some men have no side effects while others may experience nausea, headaches, skin rash, irregular heart beat, or anxiety while taking Cenforce 200 mg orally or placing an injection of Cenforce into the penis.