Consumer information about the medication MODAFINIL - ORAL (Provigil), includes side effects, drug interactions, recommended dosages, and storage information. Read more about the prescription drug MODAFINIL - ORAL., Medscape - Narcolepsy, obstructive sleep apnea, shift work sleep disorder-specific dosing for Provigil (modafinil), frequency-based adverse effects, comprehensive interactions, contraindications, pregnancy & lactation schedules, and cost information., Provigil is a prescription drug used to help people suffering from narcolepsy, shift work sleep disorder (SWSD), or obstructive sleep apnea /hypopnea syndrome (OSAHS). This drug does not cure the said conditions; it only works on the symptoms and as long as you continue taking it., Knowing about Modafinil and Provigil is important for both patients and doctors. What is Modafinil? Modafinil is a stimulant drug for narcolepsy, shift work disorder, and sleep apnea. It makes you alert without the negatives of old-school stimulants. It starts working in 2 to 4 hours, perfect for needing quick alertness., Provigil (modafinil) is a medicine taken during the day that is approved to help with EDS in people who have narcolepsy, obstructive sleep apnea, or shift work sleep disorder., 16.1 How Supplied - Modafinil tablets are available as follows: 100 mg: Each capsule-shaped, white to off white tablet is debossed with "PROVIGIL" on one side and "100 MG" on the other..