Levitra is an erectile dysfunction(ED) medication that is also known by its generic name vardenafil hydrochloride. It was first manufactured in 2003 by German company Bayer Pharmaceuticals as an alternative to viagra. Levitra works only when the person is sexually stimulated. It reduces the natural chemical of your body that makes erections hard and increases the blood flow in the penis. As a result, it helps an erection last long during sexual activity. Side effects of Levitra Like every medication has some pros and cons, Levitra has some pros and cons too. Although not even the body gets side effects with its use, most of the effects are mild. Common side effects Dizziness Headache Blocked or runny nose Flushing Indigestion