Many people with narcolepsy, sleep apnea, and shift work sleep disorder use Modalert 200 to help them stay awake. In the short term, it is usually well tolerated, but its long-term safety needs careful thought. Long-term use may result in adverse effects like reliance, headaches, anxiety, or insomnia. Furthermore, nothing is known about how it affects cardiovascular and liver health. https://www.goodrxaustralia.com/product/modalert-200/