Waklert is a prescription medication containing armodafinil, and it is used to promote wakefulness in conditions like narcolepsy, sleep apnea, and shift work sleep disorder. It enhances alertness by affecting brain neurotransmitters. There are common side effects include headache, nausea, insomnia, and dizziness. It should be used under medical supervision, and misuse may lead to dependence or unwanted effects.