Modvigil 200mg may be taken when required, but only under a doctor’s care. It is usually indicated for regular daily use in cases of sleep apnea, shift work sleep disorder, and narcolepsy. Some people, on the other hand, might use it sometimes to fight excessive fatigue or stay focused while performing taxing jobs. While taking it as needed may lower the chance of tolerance or adverse effects, sporadic use may potentially cause erratic outcomes or interfere with sleep. Following your doctor’s instructions is crucial to ensuring safe and efficient use. Particularly if you suffer from psychological disorders or cardiac problems, refrain from self-medicating.