In 2026, modafinil 200mg remains the hallmark therapeutic dose for establishing a reliable, long-form window of alertness and mental clarity. As a potent eugeroic (wakefulness-promoting agent), this specific strength is clinically engineered to reach peak plasma concentrations within 2 to 4 hours, providing a steady "plateau" of focus that typically lasts between 10 to 15 hours. Unlike standard stimulants that cause rapid spikes and crashes, the 200mg tablet facilitates a smoother release by selectively modulating neurotransmitters like dopamine and histamine in the brain's sleep-regulation centers.