Narcolepsy, sleep apnea, and shift work sleep disorder all contribute to extreme drowsiness, which is usually treated with the drug Modalert 200 mg. It has modafinil as an active component, which promotes wakefulness and enhances cognitive performance. It's crucial to take Modalert 200 mg exactly as directed and at the same time every day to maintain its effectiveness. Typically, it is consumed orally with or without food. Modalert 200 mg may produce negative effects, just like any other medicine. Headache, nausea, anxiety, and insomnia are typical adverse effects. Typically, these adverse effects are minor and transient. However, it's crucial to get medical help if you encounter any severe or lingering adverse effects.