Artvigil 150 is one of the most powerful nootropics and smart medicines available for the treatment of excessive daytime drowsiness caused by narcolepsy or obstructive sleep apnea. It's also used to treat shift work sleep disorder, which causes excessive drowsiness. Armodafinil also has cognitive advantages, which is why it's often used to improve attention, focus, motivation, and alertness. It belongs to the class of medicines known as wakefulness-promoting agents. The specific process is uncertain, but it seems to function by increasing the levels of particular brain chemicals. For more information visit Smartfinil.