Hello there! I am 22 years old and I am a medical student. My exams are going to be there next month and I have started preparing. Its winter’s time so I feel a lot of sleepiness and tiredness. My mind keeps dozing off and I lose my focus. My friend has advised me to use nuvigil for maintaining wakefullness throughout the day. But before using nuvigil I want to know about its potentially serious reactions?