Buy Provigil Online; Provigil is also called Modafinil. It is a prescribed medication used to treat general sleepiness due to Narcolepsy, shift work sleep disorder, and obstructive sleep apnea. Provigil helps to enhance the central nervous system; through two different variants Provigil 100 mg and Provigil 200mg. In 2020, Provigil is the most common medication for ADHD in the USA. Take with a doctor's prescription; directly by mouth.