Modafinil is one of the best medications that helps in treating various health and mental health problems. Still, it is prescribed for treating shift work sleep disorders, narcolepsy, and obstructive sleep apnea, which leads to excessive daytime sleepiness. It is a prescribed medication with FDA approval, with an onset action that works within 30 minutes. This medication works by enhancing the level of dopamine and other neurotransmitters, which help improve brain function and mood, boost energy, and increase activeness and alertness, allowing one to focus better. The half-life of modafinil is 12-15 hours. To have more details about modafinil, Read the blog shared by Online Pills Store.