Buy Provigil Generic drug is frequently used to treat attention deficit hyperactivity disorder in adults and children. However, children under the age of six are usually not advised to use it. In addition to improving work concentration, this medicine can lessen hyperactivity and impulsivity among Provigil users. Provigil should be used daily for the optimum effects, preferably at the same time each day to help with remembering to take it. You should take this medication orally twice or three times a day as prescribed by your physician; ideally, you should take the drug 30 to 45 minutes before meals.