Modafinil, a prescription drug frequently used to treat ailments including narcolepsy, obstructive sleep apnea, and shift work sleep disorder, is present in Modalert 200. Modalert 200 may be prescribed for daily use by doctors to people with certain disorders, but it should always be used under medical supervision. The likelihood of adverse effects, including headaches, sleeplessness, anxiety, or elevated heart rate, may rise if it is used daily without supervision. Health issues and individual tolerance are also important. Therefore, before taking Modalert 200 on a regular basis, it's crucial to follow a healthcare professional's advice.