--->Click Here to Buy<--- careskit.com/product-category/adhd/provigil/ American researchers created the well-known drug Provigil, also referred to as modafinil. The Food and Drug Administration (FDA) has given this medication approval for use worldwide. Provigil/Modafinil is one medication used to treat narcolepsy, a condition that results in excessive sleepiness. A type of sleep disorder known as narcolepsy interferes with the brain's ability to regulate alertness and sleep, which is why it makes you feel tired during the day. ADHD patients report feeling alert, satisfied, invigorated, and enthusiastic after taking modafinil. An abrupt loss in muscle tone that results in weakness and impairs your capacity to regulate your muscles is a characteristic of this condition.