The amount of time someone may safely utilise modafinil, such as Modalert 200, depends on their health and medical supervision. Many people use it for months, if not years, to treat illnesses such as narcolepsy or shift work sleep disorder without incident. According to studies, modafinil has a low risk of dependency or tolerance, although long-term usage should be supervised by a phy... https://www.smartfinil.net/product/modalert-200/