Modalert 200 mg is a prescription medication commonly used to treat narcolepsy, shift work sleep disorder, and obstructive sleep apnea. It contains the active ingredient modafinil, which promotes wakefulness by affecting certain chemicals in the brain. While it is generally safe to take Modalert 200 mg daily as prescribed by a healthcare professional, it is important to follow their guidance and not exceed the recommended dosage.Some common side effects of Modalert 200 mg include headache, nausea, nervousness, and dizziness. If you experience any severe side effects or have concerns about taking this medication daily, consult your doctor for further advice.