The main purpose of Waklert 150 is to encourage wakefulness in patients with disorders such as shift work sleep disorder or narcolepsy. Depending on a person's metabolism, tolerance, and general health, its effects may last anywhere from 12 to 15 hours. By activating the wakefulness centres of the brain, the medication helps users maintain their attention and alertness throughout the day. However, its duration can differ; some people may experience prolonged wakefulness, while others may feel its effects wane out quicker. It is crucial to remember that Waklert may cause sleep disturbances if taken too late in the day. For tailored guidance on dose and timing to prevent interference with your natural sleep cycle, always seek the counsel of a healthcare professional.