Artvigil 150 mg is a prescription medication that contains armodafinil, a wakefulness-promoting agent commonly used to manage excessive daytime sleepiness associated with conditions such as narcolepsy, obstructive sleep apnea, and shift work sleep disorder. It works by affecting certain neurotransmitters in the brain that help regulate the sleep–wake cycle, supporting improved alertness and focus during waking hours. Artvigil is known for its long-lasting effect and is often preferred for maintaining mental clarity and productivity without the intense stimulation linked to traditional stimulants.