Dosage in Obstructive Sleep Apnea (OSA) and Narcolepsy

The recommended dosage of NUVIGIL for patients with OSA or narcolepsy is 150 mg to 250 mg taken orally once a day as a single dose in the morning.

In patients with OSA, doses up to 250 mg/day, given as a single dose, have been well tolerated, but there is no consistent evidence that these doses confer additional benefit beyond that of the 150 mg/day dose [see Clinical Pharmacology (12.3) and Clinical Studies (14.1, 14.2)].

Dosage in Shift Work Disorder (SWD)

The recommended dosage of NUVIGIL for patients with SWD is 150 mg taken orally once a day as a single dose approximately 1 hour prior to the start of their work shift.

Dosage Modification in Patients with Severe Hepatic Impairment

In patients with severe hepatic impairment, the dosage of NUVIGIL should be reduced [see Use in Specific Populations (8.6) and Clinical Pharmacology (12.3)].

Use in Geriatric Patients

Consideration should be given to the use of lower doses and close monitoring in geriatric patients [see Use in Specific Populations (8.5)].