I was just wondering what other people are taking.

I am up to 4 a day when I work.

1 is all i can handle.

From an MS study a total of 50 MS patients were enrolled in the open-label study. Efficacy was evaluated using the fatigue severity scale, the Epworth sleepiness scale, and by a subjective patient appraisal of change in fatigue, quality of life, and overall satisfaction with treatment. Adverse events were recorded throughout the study.
Treatment was started with a single daily dose of 100 mg of Provigil in all patients. In nonresponders, the dose was increased by 100 mg increments up to a maximum daily dose of 400 mg. Three patients discontinued treatment because of adverse events such as dizziness and nervousness. Significant improvements in patients’ fatigue were observed at the end of three months.

Overall, the clinical condition of 91.5 percent of patients was improved with no patients reporting a worsening in their clinical condition.

I personally have never seen anyone take over 200 mg daily.
I can only handle max 50 but like above comment talk to your neuro re dosage and your symptoms. Imo

Ask the doctor or the pharmacist, but I wouldn't take more than prescribed.