Well, they might go away in less than a week. However, if any person faces these side effects for too long, then he must talk to the doctor. This advice too applies to those who are potentially caught up by the severe side effects of Cenforce 150 mg medicine. These are pretty infrequent but can cause serious complications. They are listed as: Eyesight issues like sudden, severe loss of vision, or blurriness, in one or both eyes.