Tests have shown that Modalert 200 mg is equally as safe and effective as Provigil when used as a temporary substitute. Many sleep disorders, such as narcolepsy, obstructive sleep apnea, and shift work sleep disorders, are treated with modafinil.

Taking Modalert 200 mg online is most effective when done so with or without a glass of water. Typically, modafinil is advised to be taken in the mornings to prevent drowsiness during the day, or, if directed by a physician, one hour before work. You should speak with your doctor for more details. He or she will be able to determine the ideal dosage for you after taking a close look at your body. In addition to headaches, nausea, and diarrhea, modafinil can also induce back discomfort, nausea, difficulty sleeping, a stuffy nose, anxiety, and stomach upset. However, if your symptoms worsen or persist for more than a few days, you should consult a physician. You should see a doctor as soon as possible if you require immediate medical attention.