Yes, Modalert 200 Tablet requires a prescription from a registered medical practitioner. It contains Modafinil, a medicine used to improve wakefulness in conditions such as narcolepsy (excessive and uncontrollable daytime sleepiness), obstructive sleep apnoea (breathing repeatedly stops and starts during sleep), and shift work sleep disorder (poor sleep or excessive sleepiness caused by working night shifts). It is not a medicine that can be bought over the counter. It is classified as a controlled medicine because it affects the brain and nervous system and may lead to misuse if taken without medical guidance. A doctor will first assess your symptoms, medical history, and suitability before prescribing it. Taking it without medical supervision may lead to side effects such as headache, anxiety, dizziness, increased heart rate, or difficulty sleeping. Therefore, it is important not to self-medicate with this tablet. If you feel excessively sleepy during the day or suspect a sleep disorder, please consult a doctor for proper diagnosis and to decide whether this medicine is appropriate for you.