--->Click Here to Buy<--- careskit.com/product-category/adhd/provigil/ The popular medication Provigil, commonly known as modafinil, was developed by American researchers. The Food and Drug Administration (FDA) has approved this drug for use in any country. One drug used to treat narcolepsy, a disorder that causes excessive drowsiness, is Provigil/Modafinil. Narcolepsy is a form of sleep disorder that causes fatigue throughout the day by interfering with the brain's capacity to control wakefulness and sleep. After using modafinil, people with ADHD report feeling alert, content, energized, and enthusiastic. This disorder is characterized by a sudden decrease of muscular tone that causes weakness and hinders your ability to control your muscles.