Shop Provigil Online without prescription and save upto 80% on your first order . Provigil is also called as modafinil tablet is a prescribed medication used in the treatment of narcolepsy, a condition in which there are irregularities in the sleep-wake cycle, Obstructive Sleep Apnea – a condition where the breathing stops for a short period or the breathing is shallow, leading to a lack of sleep at night and day time sleepiness.