
tell your doctor and pharmacist what prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking.tell your doctor and pharmacist if you are allergic to modafinil, armodafinil (Nuvigil), or any other medications.Continue to use any breathing devices or other treatments that your doctor has prescribed to treat your condition, especially if you have OSAHS.

Follow your doctor's advice about good sleep habits. Modafinil should not be used in place of getting enough sleep. Do not stop taking modafinil without talking to your doctor. Continue to take modafinil even if you feel well-rested. Modafinil may decrease your sleepiness, but it will not cure your sleep disorder. Do not take a larger dose, take it more often, or take it for a longer period of time than prescribed by your doctor. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Talk to your doctor if your work shift does not begin at the same time every day. Do not change the time of day that you take modafinil without talking to your doctor. Take modafinil at the same time every day.

If you are taking modafinil to treat shift work sleep disorder, you will probably take it 1 hour before the beginning of your work shift. If you are taking modafinil to treat narcolepsy or OSAHS, you will probably take it in the morning. It is usually taken once a day with or without food.

Modafinil comes as a tablet to take by mouth.
