Vilitra 10 mg is generally taken when needed, according to a healthcare professional’s instructions. The appropriate dose can vary depending on a person's age, medical history, other medicines, and response to treatment. It should not be taken more often or in a higher amount than prescribed. Common side effects of vardenafil may include headache, flushing, indigestion, nasal congestion, dizziness, and back pain. Most side effects are temporary, but serious reactions can occur. An erection lasting more than four hours requires immediate medical attention. https://www.genericday.com/vilitra-10-mg.html