Levitra (vardenafil) is recommended for patients that experience repeated problems with getting an erection. Unfortunately, you cannot avoid side effects of Levitra - as any person can get them. However, you should know which side effects are considered to be mild and should not be reported to your health care provider, and which ones are serious and require urgent medical attention. Mild side effects include heartburn, headache, flu-like symptoms, runny or stuffy nose and facial flushing. You don't have to do anything when you get these side effects as they are usually short lived and go away soon. However, there are some symptoms that need to be reported immediately to your health care provider or your local emergency room. These include dizziness, hives, ringing in the ears, sudden loss of hearing, priapism, difficulty breathing, rash and some other ones that you can read about in your patient's information leaflet.