Provigil for Chronic Fatigue and "Brain Fog"While its primary FDA-approved uses are for narcolepsy and sleep apnea, Provigil is increasingly recognized in the medical community for managing Chronic Fatigue Syndrome (CFS) and the "brain fog" associated with long-term viral recovery. Unlike traditional caffeine-based boosters, Provigil modulates neurotransmitters like dopamine and histamine to provide a smooth, lasting sense of mental clarity.