What are the dangers associated with a Levitra dosage?

The most common side effects experienced by users of Levitra are headaches, runny nose, indigestion, dizziness and back pain. Less commonly encountered side effects include an erection that does not go away and changes to color vision, according to GlaxoSmithKline.

When taken with other medicines, Levitra can cause blood pressure to drop to an unsafe level. This can result in dizziness, faintness, and even a heart attack or stroke, reports GlaxoSmithKline. Very rarely, men taking Levitra or any other erectile dysfunction have reported loss of vision in one or both eyes. However, it has not been determined if this symptom is a direct result of the medicine.