This medicine helps adults, adolescents, and children over 7 years old who have narcolepsy with cataplexy by improving night-time sleep.
The usual starting dose for adults is 4.5 grams per day, taken as two separate 2.25 gram doses. Your doctor may gradually increase the dose up to a maximum of 9 grams per day, given as two separate 4.5 gram doses.
Take two doses orally every night. Take the first dose when you go to bed, and the second dose 2.5 to 4 hours later. You might need an alarm to wake up for the second dose. Take the medicine 2-3 hours after eating, as food can reduce its absorption. Prepare both doses before bed and take them within 24 hours of preparation.
The maximum daily dose is 9 grams, given as two separate 4.5 gram doses.