Modalert 200 (Modafinil) can be taken daily with a doctor's prescription to treat conditions such as narcolepsy, obstructive sleep apnea, and shift work sleep disorder. When used under a doctor's supervision, Modalert 200 mg Australia effectively promotes wakefulness and reduces excessive daytime sleepiness. However, it is important to follow your doctor's instructions carefully, as daily use can cause side effects such as headaches, anxiety, and insomnia. In addition, long-term use can reduce the effectiveness of the meds over time or lead to a dependency on the meds to maintain wakefulness. Regular medical checkups are important to monitor your health and adjust your dosage if necessary. Do not self-prescribe Modalert or increase your dose without consulting your doctor.