The typical dosage of armodafinil including Artvigil 150, varies based on the condition being treated. For conditions like narcolepsy, obstructive sleep apnea, or shift work sleep disorder, the usual recommended dose is 150 mg once per day in the morning or one hour before the start of a work shift. In some cases, the dose can be adjusted to 200 mg per day, depending on individual response and tolerance. It's important to follow a healthcare provider's advice when using Artvigil 150 or other armodafinil medications to ensure proper dosing and avoid potential side effects. Do not exceed the prescribed dose without consulting a doctor.