Besides treating narcolepsy and other sleep disorder, Vilafinil, a powerful wakefulness promoting agent, is also effective in the treatment of attention deficit hyperactivity disorder and shift work disorder. Students can improve their performance in both competitive exams and interviews. It enhances their focus and learning ability and helps them to score better grades. A single dose of Vilafinil can boost the memory of the students and assist them to fulfill the expectations of their parents and teachers. Patients affected with narcolepsy and other sleep disorders can buy Vilafinil online from the website of a reliable drug supplier in UK.