The stimulant that encourages wakefulness is called Waklert 150. Those who battle narcolepsy, sleep apnea, or shift work sleep disorder may benefit from it. It functions by changing the concentrations of specific brain chemicals that lead to drowsiness. This drug comes in tablet form and is oral to take. Additionally, it improves focus and concentration. It is frequently taken along with other drugs like benzodiazepines or antidepressants. Armodafinil, a drug that belongs to the class of substances that promote alertness, is the major component of this medication. It functions by enhancing alertness in people who suffer from narcolepsy or obstructive sleep apnea-related excessive daytime drowsiness.