Levitra 60 mg is available online at the very lowest price. Levitra 60 mg relaxes the blood vessel walls and increases to flow the blood through the penis. A single pill is recommended to be taken in 24 hours. This pill can be taken with or without food. It is usually recommended to take this pill approximately 30 minutes to 1 hour before sexual intercourse. The effects of this medicine usually last for around 5 hours. In some rare cases, side effects such as Priapism and NAION can occur. Priapism causes a prolonged erection of more than 4 hours that can permanently damage the penis if not treated within time. On the other hand, NAION causes sudden vision loss in one or both eyes. If you experience any such symptoms, rush to the doctor immediately.